49e2025bc5
noted added roadmap link to section header, reworded FF53+ multiprocessCompatibility flag as `might disable` (from `will disable`)
1671 lines
106 KiB
JavaScript
1671 lines
106 KiB
JavaScript
/******
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* name: ghacks user.js
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* date: 15 April 2017
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* version 53-beta: Achy Breaky Pants
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* "But don't tell my pants, my achy breaky pants, I just don't think they'd understand"
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* authors: v52+ github | v51- www.ghacks.net
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* url: https://github.com/ghacksuserjs/ghacks-user.js
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* releases: These are end-of-stable-life-cycle legacy archives.
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*Always* use the master branch user.js for a current up-to-date version.
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url: https://github.com/ghacksuserjs/ghacks-user.js/releases
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* README:
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1. READ the full README at github
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2. READ the full README at github
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3. If you skipped steps 1 and 2 above (shame on you), then here is the absolute minimum
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* The settings below will turn off Tracking Protection, Safe Browsing and Auto Updates
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You need to read, understand, and decide about these. Don't leave yourself less secure
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* Some user data is erased (section 2800), namely history (browsing, form, download)
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* Site breakage WILL happen
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- There are often trade-offs and conflicts between Security vs Privacy vs Anti-Fingerprinting
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and these need to be balanced against Functionality & Convenience & Breakage
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* You will need to make a few changes to suit your own needs
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- Search this file for the "[SETUP]" tag to find SOME common items you could check
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before using to avoid unexpected surprises
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- Search this file for the "[WARNING]" tag to troubleshoot or prevent SOME common issues
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4. BACKUP BACKUP BACKUP your profile folder before implementing (and/or test in a new profile)
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5. Did you do a BACKUP?
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******/
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/* START: internal custom pref to test for syntax errors (thanks earthling)
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* Yes, this next pref setting is redundant, but we like it!
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* [1] https://en.wikipedia.org/wiki/Dead_parrot
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* [2] https://en.wikipedia.org/wiki/Warrant_canary ***/
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user_pref("ghacks_user.js.parrot", "Oh yes, the Norwegian Blue... what's wrong with it?");
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/* 0001: Start Firefox in PB (Private Browsing) mode
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* [SETTING] Options>Privacy>History>Custom Settings>Always use private browsing mode
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* [NOTE] In this mode *all* windows are "private windows" and the PB mode icon is not displayed
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* [1] https://wiki.mozilla.org/Private_Browsing ***/
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// user_pref("browser.privatebrowsing.autostart", true);
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/*** 0100: STARTUP ***/
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user_pref("ghacks_user.js.parrot", "0100 syntax error: the parrot's dead!");
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/* 0101: disable "slow startup" options
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* warnings, disk history, welcomes, intros, EULA, default browser check ***/
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user_pref("browser.slowStartup.notificationDisabled", true);
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user_pref("browser.slowStartup.maxSamples", 0);
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user_pref("browser.slowStartup.samples", 0);
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user_pref("browser.rights.3.shown", true);
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user_pref("browser.startup.homepage_override.mstone", "ignore");
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user_pref("startup.homepage_welcome_url", "");
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user_pref("startup.homepage_welcome_url.additional", "");
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user_pref("startup.homepage_override_url", ""); // what's new page after updates
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user_pref("browser.laterrun.enabled", false);
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user_pref("browser.shell.checkDefaultBrowser", false);
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/* 0102: set start page (0=blank, 1=home, 2=last visited page, 3=resume previous session)
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* home = browser.startup.homepage preference.
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* [SETTING] Options>General>Startup>When Firefox starts ***/
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// user_pref("browser.startup.page", 0);
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/*** 0200: GEOLOCATION ***/
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user_pref("ghacks_user.js.parrot", "0200 syntax error: the parrot's definitely deceased!");
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/* 0201: disable location-aware browsing ***/
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user_pref("geo.enabled", false);
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user_pref("geo.wifi.uri", "https://127.0.0.1");
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user_pref("geo.wifi.logging.enabled", false); // (hidden pref)
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user_pref("browser.search.geoip.url", "");
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user_pref("geo.wifi.xhr.timeout", 1);
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user_pref("browser.search.geoip.timeout", 1);
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/* 0202: disable GeoIP-based search results
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* [NOTE] may not be hidden if Firefox has changed your settings due to your locale
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* [1] https://trac.torproject.org/projects/tor/ticket/16254 ***/
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user_pref("browser.search.countryCode", "US"); // (hidden pref)
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user_pref("browser.search.region", "US"); // (hidden pref)
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/* 0203: disable using OS locale, force APP locale ***/
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user_pref("intl.locale.matchOS", false);
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/* 0204: set APP locale ***/
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user_pref("general.useragent.locale", "en-US");
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/* 0206: disable geographically specific results/search engines eg: "browser.search.*.US"
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* i.e ignore all of Mozilla's various search engines in multiple locales ***/
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user_pref("browser.search.geoSpecificDefaults", false);
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user_pref("browser.search.geoSpecificDefaults.url", "");
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/* 0207: set language to match ***/
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user_pref("intl.accept_languages", "en-US, en");
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/* 0208: enforce US English locale regardless of the system locale
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* [1] https://bugzilla.mozilla.org/show_bug.cgi?id=867501 ***/
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user_pref("javascript.use_us_english_locale", true); // (hidden pref)
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/*** 0300: QUIET FOX [PART 1]
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No auto-phoning home for anything. You can still do manual updates. It is still important
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to do updates for security reasons. [WARNING] [SETUP] If you don't auto update, make sure you
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do manually. There are many legitimate reasons to turn off AUTO updates, including hijacked
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monetized extensions, time constraints, legacy issues, and fear of breakage/bugs ***/
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user_pref("ghacks_user.js.parrot", "0300 syntax error: the parrot's not pinin' for the fjords!");
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/* 0301a: disable browser auto update check
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* [SETTING] Options>Advanced>Update>Never check for updates ***/
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user_pref("app.update.enabled", false);
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/* 0301b: disable background update service
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* [SETTING] Options>Advanced>Update>Use a background service to install updates ***/
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user_pref("app.update.service.enabled", false);
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/* 0301c: ensure update information is not suppressed ***/
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user_pref("app.update.silent", false);
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/* 0301d: disable background update staging ***/
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user_pref("app.update.staging.enabled", false);
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/* 0302: disable browser auto update installing (after the check in 0301a) ***/
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user_pref("app.update.auto", false);
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/* 0303: disable search update
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* [SETTING] Options>Advanced>Update>Automatically update: search engines ***/
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user_pref("browser.search.update", false);
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/* 0304: disable add-ons auto update check ***/
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user_pref("extensions.update.enabled", false);
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/* 0305: disable add-ons auto update installing (after the check in 0304) ***/
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user_pref("extensions.update.autoUpdateDefault", false);
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/* 0306: disable add-on metadata updating
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* sends daily pings to Mozilla about extensions and recent startups ***/
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user_pref("extensions.getAddons.cache.enabled", false);
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/* 0307: disable auto updating of personas (themes) ***/
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user_pref("lightweightThemes.update.enabled", false);
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/* 0309: disable sending Flash crash reports ***/
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user_pref("dom.ipc.plugins.flash.subprocess.crashreporter.enabled", false);
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/* 0310: disable sending the URL of the website where a plugin crashed ***/
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user_pref("dom.ipc.plugins.reportCrashURL", false);
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/* 0320: disable extension discovery
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* featured extensions for displaying in Get Add-ons panel ***/
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user_pref("extensions.webservice.discoverURL", "http://127.0.0.1");
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/* 0330a: disable telemetry
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* the pref (.unified) affects the behaviour of the pref (.enabled)
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* IF unified=false then .enabled controls the telemetry module
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* IF unified=true then .enabled ONLY controls whether to record extended data
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* so make sure to have both set as false
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* [1] https://gecko.readthedocs.org/en/latest/toolkit/components/telemetry/telemetry/preferences.html ***/
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user_pref("toolkit.telemetry.unified", false);
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user_pref("toolkit.telemetry.enabled", false);
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/* 0330b: set unifiedIsOptIn to make sure telemetry respects OptIn choice and that telemetry
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* is enabled ONLY for people that opted into it, even if unified Telemetry is enabled ***/
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user_pref("toolkit.telemetry.unifiedIsOptIn", true); // (hidden pref)
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/* 0331: remove url of server telemetry pings are sent to ***/
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user_pref("toolkit.telemetry.server", "");
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/* 0332: disable archiving pings locally - irrelevant if toolkit.telemetry.unified is false ***/
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user_pref("toolkit.telemetry.archive.enabled", false);
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/* 0333a: disable health report ***/
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user_pref("datareporting.healthreport.uploadEnabled", false);
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user_pref("datareporting.healthreport.documentServerURI", ""); // (hidden pref)
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user_pref("datareporting.healthreport.service.enabled", false); // (hidden pref)
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/* 0333b: disable about:healthreport page (which connects to Mozilla for locale/css+js+json)
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* If you have disabled health reports, then this about page is useless - disable it
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* If you want to see what health data is present, then this must be set at default ***/
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user_pref("datareporting.healthreport.about.reportUrl", "data:text/plain,");
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/* 0334: disable new data submission, master kill switch (FF41+)
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* If disabled, no policy is shown or upload takes place, ever
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* [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1195552 ***/
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user_pref("datareporting.policy.dataSubmissionEnabled", false);
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/* 0335: remove telemetry clientID ***/
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user_pref("toolkit.telemetry.cachedClientID", "");
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/* 0336: disable "Heartbeat" (Mozilla user rating telemetry)
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* [1] https://trac.torproject.org/projects/tor/ticket/18738 ***/
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user_pref("browser.selfsupport.enabled", false); // (hidden pref)
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user_pref("browser.selfsupport.url", "");
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/* 0340: disable experiments
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* [1] https://wiki.mozilla.org/Telemetry/Experiments ***/
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user_pref("experiments.enabled", false);
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user_pref("experiments.manifest.uri", "");
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user_pref("experiments.supported", false);
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user_pref("experiments.activeExperiment", false);
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/* 0341: disable Mozilla permission to silently opt you into tests ***/
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user_pref("network.allow-experiments", false);
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/* 0350: disable crash reports ***/
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user_pref("breakpad.reportURL", "");
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/* 0351: disable sending of crash reports (FF44+) ***/
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user_pref("browser.tabs.crashReporting.sendReport", false);
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user_pref("browser.crashReports.unsubmittedCheck.enabled", false); // (FF51+)
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user_pref("browser.crashReports.unsubmittedCheck.autoSubmit", false); // (FF51+)
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/* 0360: disable new tab tile ads & preload & marketing junk ***/
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user_pref("browser.newtab.preload", false);
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user_pref("browser.newtabpage.directory.ping", "data:text/plain,");
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user_pref("browser.newtabpage.directory.source", "data:text/plain,");
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user_pref("browser.newtabpage.enabled", false);
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user_pref("browser.newtabpage.enhanced", false);
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user_pref("browser.newtabpage.introShown", true);
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/* 0370: disable "Snippets" (Mozilla content shown on about:home screen)
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* MUST use HTTPS - arbitrary content injected into this page via http opens up MiTM attacks
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* [1] https://wiki.mozilla.org/Firefox/Projects/Firefox_Start/Snippet_Service ***/
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user_pref("browser.aboutHomeSnippets.updateUrl", "https://127.0.0.1");
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/* 0373: disable "Pocket" (third party "save for later" service) & remove urls for good measure
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* [NOTE] Important: Remove the pocket icon from your toolbar first
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* [1] https://www.gnu.gl/blog/Posts/multiple-vulnerabilities-in-pocket/ ***/
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user_pref("extensions.pocket.enabled", false);
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user_pref("extensions.pocket.api", "");
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user_pref("extensions.pocket.site", "");
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user_pref("extensions.pocket.oAuthConsumerKey", "");
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/* 0374: disable "social" integration
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* [1] https://developer.mozilla.org/en-US/docs/Mozilla/Projects/Social_API ***/
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user_pref("social.whitelist", "");
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user_pref("social.toast-notifications.enabled", false);
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user_pref("social.shareDirectory", "");
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user_pref("social.remote-install.enabled", false);
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user_pref("social.directories", "");
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user_pref("social.share.activationPanelEnabled", false);
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user_pref("social.enabled", false); // (hidden pref)
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/* 0376: disable FlyWeb, a set of APIs for advertising and discovering local-area web servers
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* [1] https://wiki.mozilla.org/FlyWeb
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* [2] http://www.ghacks.net/2016/07/26/firefox-flyweb/ ***/
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user_pref("dom.flyweb.enabled", false);
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/* 0380: disable sync [SETUP] ***/
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user_pref("services.sync.enabled", false); // (hidden pref)
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/* 0381: disable WebExtension sync
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* [1] https://wiki.mozilla.org/WebExtensions/chrome.storage.sync ***/
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user_pref("webextensions.storage.sync.enabled", false);
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user_pref("webextensions.storage.sync.serverURL", "");
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/*** 0400: QUIET FOX [PART 2] [WARNING] [SETUP]
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This section has security & tracking protection implications vs privacy concerns vs effectiveness.
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These settings, WITH EXTENSIONS, are geared up to make Firefox "quiet", private and effective.
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We DO NOT advocate no protection, so use something with more scope, such as uBlock Origin.
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This entire section is rather contentious. Safebrowsing (SB) is designed to protect
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users from malicious sites. Tracking protection (TP) is designed to lessen the impact of third
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parties on websites to reduce tracking and to speed up your browsing experience. These are
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both very good features provided by Mozilla. They do rely on third parties: Google for
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safebrowsing and Disconnect for tracking protection (someone has to provide the information).
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Additionally, SSL Error Reporting helps makes the internet more secure for everyone.
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If you do not understand the ramifications of disabling SB and TP, then it is advised that
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you enable them by commenting out the preferences and saving the changes, and then in
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about:config find each entry and right-click and reset the preference's value.
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***/
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user_pref("ghacks_user.js.parrot", "0400 syntax error: the parrot's passed on!");
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/* 0401: DON'T disable extension blocklist, but sanitize blocklist url
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* It now includes updates for "revoked certificates"
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* [1] https://blog.mozilla.org/security/2015/03/03/revoking-intermediate-certificates-introducing-onecrl
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* [2] https://trac.torproject.org/projects/tor/ticket/16931 ***/
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user_pref("extensions.blocklist.enabled", true);
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user_pref("extensions.blocklist.url", "https://blocklist.addons.mozilla.org/blocklist/3/%APP_ID%/%APP_VERSION%/");
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/* 0402: disable/enable various Kinto blocklist updates (FF50+)
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* What is Kinto?: https://wiki.mozilla.org/Firefox/Kinto#Specifications
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* As Firefox transitions to Kinto, the blocklists have been broken down (more could be added). These contain
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* block entries for certs to be revoked, add-ons and plugins to be disabled, and gfx environments that
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* cause problems or crashes. Here you can remove the collection name to disable each specific list updating ***/
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user_pref("services.blocklist.update_enabled", true);
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user_pref("services.blocklist.signing.enforced", true);
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user_pref("services.blocklist.onecrl.collection", "certificates"); // revoked certificates
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user_pref("services.blocklist.addons.collection", "addons");
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user_pref("services.blocklist.plugins.collection", ""); // if you have no plugins
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user_pref("services.blocklist.gfx.collection", ""); // if gfx hw acceleration is disabled
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/* 0410: disable Safe Browsing (SB)
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* This sub-section has been redesigned to differentiate between "real-time"/"user initiated"
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* data being sent to Google from all other settings such as using local blocklists/whitelists
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* and updating those lists. There SHOULD be NO privacy issues here. Even *IF* an URL was sent
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* to Google, they swear it is anonymized and only used to flag malicious sites/activity. Firefox
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* also takes measures such as striping out identifying parameters and storing safe browsing
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* cookies in a separate jar. (#Turn on browser.safebrowsing.debug to monitor this activity)
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* To use safebrowsing but not "leak" binary download info to Google, only use 0410e and 0410f
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* #Required reading [#] https://feeding.cloud.geek.nz/posts/how-safe-browsing-works-in-firefox/
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* [1] https://wiki.mozilla.org/Security/Safe_Browsing ***/
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/* 0410a: disable "Block dangerous and deceptive content" (under Options>Security)
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* Until FF48 this was titled "Block reported web forgeries"
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* It covers deceptive sites such as phishing and social engineering ***/
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user_pref("browser.safebrowsing.malware.enabled", false);
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user_pref("browser.safebrowsing.phishing.enabled", false); // (FF50+)
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/* 0410b: disable "Block dangerous downloads" (under Options>Security)
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* Until FF48 this was titled "Block reported attack sites"
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* It covers malware and PUPs (potentially unwanted programs) ***/
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user_pref("browser.safebrowsing.downloads.enabled", false);
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/* 0410b: disable "Warn me about unwanted and uncommon software" (under Options>Security) (FF48+) ***/
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user_pref("browser.safebrowsing.downloads.remote.block_potentially_unwanted", false);
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user_pref("browser.safebrowsing.downloads.remote.block_uncommon", false);
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user_pref("browser.safebrowsing.downloads.remote.block_dangerous", false); // (FF49+)
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user_pref("browser.safebrowsing.downloads.remote.block_dangerous_host", false); // (FF49+)
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/* 0410c: disable Google safebrowsing downloads, updates ***/
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user_pref("browser.safebrowsing.provider.google.updateURL", ""); // update google lists
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user_pref("browser.safebrowsing.provider.google.gethashURL", ""); // list hash check
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user_pref("browser.safebrowsing.provider.google4.updateURL", ""); // (FF50+)
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user_pref("browser.safebrowsing.provider.google4.gethashURL", ""); // (FF50+)
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/* 0410d: disable Mozilla safebrowsing downloads, updates
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* [NOTE] These two prefs are also used for Tracking Protection (see 0420) ***/
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user_pref("browser.safebrowsing.provider.mozilla.gethashURL", ""); // resolves hash conflicts
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user_pref("browser.safebrowsing.provider.mozilla.updateURL", ""); // update FF lists
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/* 0410e: disable binaries NOT in local lists being checked by Google (real-time checking) ***/
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user_pref("browser.safebrowsing.downloads.remote.enabled", false);
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user_pref("browser.safebrowsing.downloads.remote.url", "");
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/* 0410f: disable reporting URLs ***/
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user_pref("browser.safebrowsing.provider.google.reportURL", "");
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user_pref("browser.safebrowsing.reportMalwareMistakeURL", "");
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user_pref("browser.safebrowsing.reportPhishMistakeURL", "");
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user_pref("browser.safebrowsing.reportPhishURL", "");
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user_pref("browser.safebrowsing.provider.google4.reportURL", ""); // (FF50+)
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/* 0410g: show=true or hide=false the 'ignore this warning' on Safe Browsing warnings which
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* when clicked bypasses the block for that session. This is a means for admins to enforce SB
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* [TEST] see github wiki APPENDIX C: Test Sites: Section 5
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* [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1226490 ***/
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// user_pref("browser.safebrowsing.allowOverride", true);
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/* 0420: disable Tracking Protection (TP)
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* There SHOULD be NO privacy concerns here, but we strongly recommend to use uBlock Origin instead,
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* which offers more comprehensive as well as specialized lists. It also allows per domain control.
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* [NOTE] There are two prefs (see 0410d) shared with Safe Browsing
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* [1] https://wiki.mozilla.org/Security/Tracking_protection
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* [2] https://support.mozilla.org/en-US/kb/tracking-protection-firefox ***/
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user_pref("privacy.trackingprotection.enabled", false); // all windows pref (not just private)
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user_pref("privacy.trackingprotection.pbmode.enabled", false); // private browsing pref
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/* 0421: enable more Tracking Protection choices under Options>Privacy>Use Tracking Protection ***/
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user_pref("privacy.trackingprotection.ui.enabled", true);
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/* 0430: disable SSL Error Reporting
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* [1] https://gecko.readthedocs.org/en/latest/browser/base/sslerrorreport/preferences.html ***/
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user_pref("security.ssl.errorReporting.automatic", false);
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user_pref("security.ssl.errorReporting.enabled", false);
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user_pref("security.ssl.errorReporting.url", "");
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/* 0440: disable Mozilla's blocklist for known Flash tracking/fingerprinting (FF48+)
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* If you don't have Flash, then you don't need this enabled
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* [NOTE] if enabled, you will need to check what prefs (safebrowsing URLs etc) this uses to update
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* [1] http://www.ghacks.net/2016/07/18/firefox-48-blocklist-against-plugin-fingerprinting/
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* [2] https://bugzilla.mozilla.org/show_bug.cgi?id=1237198 ***/
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user_pref("browser.safebrowsing.blockedURIs.enabled", false);
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/*** 0600: BLOCK IMPLICIT OUTBOUND [not explicitly asked for - eg clicked on] ***/
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user_pref("ghacks_user.js.parrot", "0600 syntax error: the parrot's no more!");
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/* 0601: disable link prefetching
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* [1] https://developer.mozilla.org/en-US/docs/Web/HTTP/Link_prefetching_FAQ ***/
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user_pref("network.prefetch-next", false);
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/* 0602: disable DNS prefetching
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* [1] http://www.ghacks.net/2013/04/27/firefox-prefetching-what-you-need-to-know/
|
|
* [2] https://developer.mozilla.org/en-US/docs/Web/HTTP/Controlling_DNS_prefetching ***/
|
|
user_pref("network.dns.disablePrefetch", true);
|
|
user_pref("network.dns.disablePrefetchFromHTTPS", true); // (hidden pref)
|
|
/* 0603a: disable Seer/Necko
|
|
* [1] https://developer.mozilla.org/en-US/docs/Mozilla/Projects/Necko ***/
|
|
user_pref("network.predictor.enabled", false);
|
|
/* 0603b: disable more Necko/Captive Portal
|
|
* [1] https://en.wikipedia.org/wiki/Captive_portal
|
|
* [2] https://wiki.mozilla.org/Necko/CaptivePortal ***/
|
|
user_pref("captivedetect.canonicalURL", "");
|
|
user_pref("network.captive-portal-service.enabled", false); // (FF52+)
|
|
/* 0605: disable link-mouseover opening connection to linked server
|
|
* [1] http://news.slashdot.org/story/15/08/14/2321202/how-to-quash-firefoxs-silent-requests
|
|
* [2] http://www.ghacks.net/2015/08/16/block-firefox-from-connecting-to-sites-when-you-hover-over-links ***/
|
|
user_pref("network.http.speculative-parallel-limit", 0);
|
|
/* 0606: disable pings (but enforce same host in case)
|
|
* [1] http://kb.mozillazine.org/Browser.send_pings
|
|
* [2] http://kb.mozillazine.org/Browser.send_pings.require_same_host ***/
|
|
user_pref("browser.send_pings", false);
|
|
user_pref("browser.send_pings.require_same_host", true);
|
|
/* 0607: stop links launching Windows Store on Windows 8/8.1/10
|
|
* [1] http://www.ghacks.net/2016/03/25/block-firefox-chrome-windows-store/ ***/
|
|
user_pref("network.protocol-handler.external.ms-windows-store", false);
|
|
/* 0608: disable predictor / prefetching (FF48+) ***/
|
|
user_pref("network.predictor.enable-prefetch", false);
|
|
|
|
/*** 0800: LOCATION BAR / SEARCH BAR / SUGGESTIONS / HISTORY / FORMS [SETUP]
|
|
If you are in a private environment (no unwanted eyeballs) and your device is private
|
|
(restricted access), and the device is secure when unattended (locked, encrypted, forensic
|
|
hardened), then items 0850 and above can be relaxed in return for more convenience and
|
|
functionality. Likewise, you may want to check the items cleared on shutdown in section 2800.
|
|
[NOTE] The urlbar is also commonly referred to as the location bar and address bar
|
|
#Required reading [#] https://xkcd.com/538/
|
|
***/
|
|
user_pref("ghacks_user.js.parrot", "0800 syntax error: the parrot's ceased to be!");
|
|
/* 0801: disable location bar using search - PRIVACY
|
|
* don't leak typos to a search engine, give an error message instead ***/
|
|
user_pref("keyword.enabled", false);
|
|
/* 0802: disable location bar domain guessing - PRIVACY/SECURITY
|
|
* domain guessing intercepts DNS "hostname not found errors" and resends a
|
|
* request (eg by adding www or .com). This is inconsistent use (eg FQDNs), does not work
|
|
* via Proxy Servers (different error), is a flawed use of DNS (TLDs: why treat .com
|
|
* as the 411 for DNS errors?), privacy issues (why connect to sites you didn't
|
|
* intend to), can leak sensitive data (eg query strings: eg Princeton attack),
|
|
* and is a security risk (eg common typos & malicious sites set up to exploit this) ***/
|
|
user_pref("browser.fixup.alternate.enabled", false);
|
|
/* 0803: display all parts of the url in the location bar - helps SECURITY ***/
|
|
user_pref("browser.urlbar.trimURLs", false);
|
|
/* 0804: limit history leaks via enumeration (PER TAB: back/forward) - PRIVACY
|
|
* This is a PER TAB session history. You still have a full history stored under all history
|
|
* default=50, minimum=1=currentpage, 2 is the recommended minimum as some pages
|
|
* use it as a means of referral (eg hotlinking), 4 or 6 or 10 may be more practical ***/
|
|
user_pref("browser.sessionhistory.max_entries", 10);
|
|
/* 0805: disable CSS querying page history - CSS history leak - PRIVACY
|
|
* [NOTE] this has NEVER been fully "resolved": in Mozilla/docs it is stated it's
|
|
* only in 'certain circumstances', also see latest comments in [3]
|
|
* [TEST] http://lcamtuf.coredump.cx/yahh/ (see github wiki APPENDIX C on how to use)
|
|
* [1] https://dbaron.org/mozilla/visited-privacy
|
|
* [2] https://bugzilla.mozilla.org/show_bug.cgi?id=147777
|
|
* [3] https://developer.mozilla.org/en-US/docs/Web/CSS/Privacy_and_the_:visited_selector ***/
|
|
user_pref("layout.css.visited_links_enabled", false);
|
|
/* 0806: disable displaying javascript in history URLs - SECURITY ***/
|
|
user_pref("browser.urlbar.filter.javascript", true);
|
|
/* 0807: disable search bar LIVE search suggestions - PRIVACY
|
|
* [SETTING] Options>Search>Provide search suggestions ***/
|
|
user_pref("browser.search.suggest.enabled", false);
|
|
/* 0808: disable location bar LIVE search suggestions (requires 0807 = true) - PRIVACY
|
|
* Also disable the location bar prompt to enable/disable or learn more about it.
|
|
* [SETTING] Options>Search>Show search suggestions in location bar results ***/
|
|
user_pref("browser.urlbar.suggest.searches", false);
|
|
user_pref("browser.urlbar.userMadeSearchSuggestionsChoice", true); // (FF41+)
|
|
/* 0850a: disable location bar autocomplete ***/
|
|
user_pref("browser.urlbar.autocomplete.enabled", false);
|
|
/* 0850b: disable location bar dropdown
|
|
* This value used to control the maximum number of entries that could appear in the location
|
|
* bar dropdown. This is no longer the case, and thus, it does *NOT* hide any suggestions ***/
|
|
// user_pref("browser.urlbar.maxRichResults", 0);
|
|
/* 0850c: disable location bar suggestion types
|
|
* [SETTING] Options>Privacy>Location Bar>When using the location bar, suggest
|
|
* [NOTE] If you wish to enable these suggestions, make sure 0850a is at default ***/
|
|
user_pref("browser.urlbar.suggest.history", false);
|
|
user_pref("browser.urlbar.suggest.bookmark", false);
|
|
user_pref("browser.urlbar.suggest.openpage", false);
|
|
/* 0850d: disable location bar autofill
|
|
* [1] http://kb.mozillazine.org/Inline_autocomplete ***/
|
|
user_pref("browser.urlbar.autoFill", false);
|
|
user_pref("browser.urlbar.autoFill.typed", false);
|
|
/* 0850e: disable location bar one-off searches (FF51+)
|
|
* [1] http://www.ghacks.net/2016/08/09/firefox-one-off-searches-address-bar/ ***/
|
|
user_pref("browser.urlbar.oneOffSearches", false);
|
|
/* 0860: disable search and form history
|
|
* [SETTING] Options>Privacy>History>Custom Settings>Remember search and form history
|
|
* [NOTE] You can clear formdata on exiting Firefox (see 2803) ***/
|
|
// user_pref("browser.formfill.enable", false);
|
|
/* 0861: disable saving form history on secure websites
|
|
* For convenience & functionality, this is best left at default true,
|
|
* especially as the web moves more and more to encrypted services
|
|
* You can clear form history on exiting Firefox (see 2803) ***/
|
|
// user_pref("browser.formfill.saveHttpsForms", false);
|
|
/* 0862: disable browsing and download history
|
|
* [SETTING] Options>Privacy>History>Custom Settings>Remember my browsing and download history
|
|
* [NOTE] You can clear history and downloads on exiting Firefox (see 2803) ***/
|
|
// user_pref("places.history.enabled", false);
|
|
/* 0870: disable Windows jumplist ***/
|
|
user_pref("browser.taskbar.lists.enabled", false);
|
|
user_pref("browser.taskbar.lists.frequent.enabled", false);
|
|
user_pref("browser.taskbar.lists.recent.enabled", false);
|
|
user_pref("browser.taskbar.lists.tasks.enabled", false);
|
|
/* 0871: disable Windows taskbar preview ***/
|
|
user_pref("browser.taskbar.previews.enable", false);
|
|
|
|
/*** 0900: PASSWORDS ***/
|
|
user_pref("ghacks_user.js.parrot", "0900 syntax error: the parrot's expired!");
|
|
/* 0901: disable saving passwords
|
|
* [SETTING] Options>Security>Logins>Remember logins for sites
|
|
* [NOTE] this does not clear any passwords already saved ***/
|
|
// user_pref("signon.rememberSignons", false);
|
|
/* 0902: use a master password (recommended if you save passwords)
|
|
* There are no preferences for this. It is all handled internally.
|
|
* [1] https://support.mozilla.org/en-US/kb/use-master-password-protect-stored-logins ***/
|
|
/* 0903: set how often Mozilla should ask for the master password
|
|
* 0=the first time (default), 1=every time it's needed, 2=every n minutes (as per the next pref) ***/
|
|
user_pref("security.ask_for_password", 2);
|
|
/* 0904: how often in minutes Mozilla should ask for the master password (see pref above)
|
|
* in minutes, default is 30 ***/
|
|
user_pref("security.password_lifetime", 5);
|
|
/* 0905: disable auto-filling username & password form fields - SECURITY
|
|
* can leak in cross-site forms AND be spoofed
|
|
* [NOTE] password will still be auto-filled after a user name is manually entered
|
|
* [1] http://kb.mozillazine.org/Signon.autofillForms ***/
|
|
user_pref("signon.autofillForms", false);
|
|
/* 0906: ignore websites' autocomplete="off" (FF30+)
|
|
* Don't let sites dictate use of saved logins and passwords. Increase security through
|
|
* stronger password use. The trade-off is the convenience. Some sites should never be
|
|
* saved (such as banking sites). Set at true, informed users can make their own choice. ***/
|
|
user_pref("signon.storeWhenAutocompleteOff", true);
|
|
/* 0907: force warnings for logins on non-secure (non HTTPS) pages
|
|
* [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1217156 ***/
|
|
user_pref("security.insecure_password.ui.enabled", true);
|
|
/* 0908: When attempting to fix an entered URL, do not fix an entered password along with it
|
|
* i.e do not turn ~http://user:password@foo into ~http://user:password@(prefix)foo(suffix)
|
|
* but instead ~http://user@(prefix)foo(suffix) ***/
|
|
user_pref("browser.fixup.hide_user_pass", true);
|
|
/* 0909: disable formless login capture for Password Manager (FF51+) ***/
|
|
user_pref("signon.formlessCapture.enabled", false);
|
|
/* 0910: enforce disable autofilling saved password on HTTP pages and show warning (FF52+)
|
|
* [1] https://www.fxsitecompat.com/en-CA/docs/2017/insecure-login-forms-now-disable-autofill-show-warning-beneath-input-control/ ***/
|
|
user_pref("signon.autofillForms.http", false);
|
|
user_pref("security.insecure_field_warning.contextual.enabled", true);
|
|
|
|
/*** 1000: CACHE [SETUP] ***/
|
|
user_pref("ghacks_user.js.parrot", "1000 syntax error: the parrot's gone to meet 'is maker!");
|
|
/** CACHE ***/
|
|
/* 1001: disable disk cache ***/
|
|
user_pref("browser.cache.disk.enable", false);
|
|
user_pref("browser.cache.disk.capacity", 0);
|
|
user_pref("browser.cache.disk.smart_size.enabled", false);
|
|
user_pref("browser.cache.disk.smart_size.first_run", false);
|
|
/* 1002: disable disk cache for SSL pages
|
|
* [1] http://kb.mozillazine.org/Browser.cache.disk_cache_ssl ***/
|
|
user_pref("browser.cache.disk_cache_ssl", false);
|
|
/* 1003: disable memory cache ***/
|
|
// user_pref("browser.cache.memory.enable", false);
|
|
/* 1004: disable offline cache ***/
|
|
user_pref("browser.cache.offline.enable", false);
|
|
/* 1005: disable fastback cache
|
|
* To improve performance when pressing back/forward Firefox stores visited pages
|
|
* so they don't have to be re-parsed. This is not the same as memory cache.
|
|
* 0=none, -1=auto (that's minus 1), or for other values see [1]
|
|
* [1] http://kb.mozillazine.org/Browser.sessionhistory.max_total_viewers ***/
|
|
// user_pref("browser.sessionhistory.max_total_viewers", 0);
|
|
/* 1006: disable permissions manager from writing to disk (requires restart)
|
|
* [1] https://bugzilla.mozilla.org/show_bug.cgi?id=967812 ***/
|
|
// user_pref("permissions.memory_only", true); // (hidden pref)
|
|
/* 1007: disable randomized FF HTTP cache decay experiments
|
|
* [1] https://trac.torproject.org/projects/tor/ticket/13575 ***/
|
|
user_pref("browser.cache.frecency_experiment", -1);
|
|
/* 1008: set DNS cache and expiration time (default 400 and 60, same as TBB) ***/
|
|
// user_pref("network.dnsCacheEntries", 400);
|
|
// user_pref("network.dnsCacheExpiration", 60);
|
|
/** SESSIONS & SESSION RESTORE ***/
|
|
/* 1020: disable the Session Restore service completely
|
|
* [WARNING] [SETUP] This also disables the "Recently Closed Tabs" feature
|
|
* It does not affect "Recently Closed Windows" or any history. ***/
|
|
user_pref("browser.sessionstore.max_tabs_undo", 0);
|
|
user_pref("browser.sessionstore.max_windows_undo", 0);
|
|
/* 1021: disable storing extra session data
|
|
* extra session data contains contents of forms, scrollbar positions, cookies and POST data
|
|
* define on which sites to save extra session data:
|
|
* 0=everywhere, 1=unencrypted sites, 2=nowhere ***/
|
|
user_pref("browser.sessionstore.privacy_level", 2);
|
|
/* 1022: disable resuming session from crash [SETUP] ***/
|
|
user_pref("browser.sessionstore.resume_from_crash", false);
|
|
/* 1023: If you use session restore, increasing the minimal interval between two session save
|
|
* operations can help on older machines and some websites, as well as reducing writes, see [1]
|
|
* Default is 15000 (15 secs). Try 30000 (30sec), 60000 (1min) etc
|
|
* [WARNING] This can also affect entries in the "Recently Closed Tabs" feature:
|
|
* i.e the longer the interval the more chance a quick tab open/close won't be captured.
|
|
* This longer interval *may* affect history but we cannot replicate any history not recorded
|
|
* [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1304389 ***/
|
|
user_pref("browser.sessionstore.interval", 30000);
|
|
/** FAVICONS ***/
|
|
/* 1030: disable favicons in shortcuts
|
|
* URL shortcuts use a cached randomly named .ico file which is stored in your
|
|
* profile/shortcutCache directory. The .ico remains after the shortcut is deleted.
|
|
* If set to false then the shortcuts use a generic Firefox icon ***/
|
|
user_pref("browser.shell.shortcutFavicons", false);
|
|
/* 1031: disable favicons in tabs and new bookmarks
|
|
* bookmark favicons are stored as data blobs in places.sqlite>moz_favicons ***/
|
|
// user_pref("browser.chrome.site_icons", false);
|
|
// user_pref("browser.chrome.favicons", false);
|
|
/* 1032: disable favicons in web notifications ***/
|
|
// user_pref("alerts.showFavicons", false);
|
|
|
|
/*** 1100: MULTI-PROCESS (e10s)
|
|
We recommend you let Firefox handle this. Until e10s is enforced, if
|
|
- all your add-ons have the 'multiprocessCompatible' flag as true, then FF = e10s
|
|
- any add-ons have 'multiprocessCompatible' flag as false, then FF != e10s
|
|
- any add-ons are missing the 'multiprocessCompatible' flag *might* be disabled (FF53+)
|
|
[1] https://blog.mozilla.org/addons/2017/02/16/the-road-to-firefox-57-compatibility-milestones/
|
|
***/
|
|
/* 1101: start the browser in e10s mode (FF48+)
|
|
* about:support>Application Basics>Multiprocess Windows ***/
|
|
// user_pref("browser.tabs.remote.autostart", true);
|
|
// user_pref("browser.tabs.remote.autostart.2", true); // (FF49+) (hidden pref)
|
|
// user_pref("browser.tabs.remote.force-enable", true); // (hidden pref)
|
|
// user_pref("extensions.e10sBlocksEnabling", false);
|
|
/* 1102: control number of e10s processes
|
|
* [1] http://www.ghacks.net/2016/02/15/change-how-many-processes-multi-process-firefox-uses/
|
|
* [2] https://bugzilla.mozilla.org/show_bug.cgi?id=1207306 ***/
|
|
// user_pref("dom.ipc.processCount", 4);
|
|
/* 1103: enable WebExtension add-on code to run in a separate process (webext-oop) (FF53+)
|
|
* [1] https://wiki.mozilla.org/WebExtensions/Implementing_APIs_out-of-process */
|
|
// user_pref("extensions.webextensions.remote", true);
|
|
/* 1104: enforce separate content process for file://URLs (FF53+)
|
|
* [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1147911
|
|
* [2] http://www.ghacks.net/2016/11/27/firefox-53-exclusive-content-process-for-local-files/ ***/
|
|
// user_pref("browser.tabs.remote.separateFileUriProcess", true);
|
|
/* 1105: enable console shim warnings for add-ons with the 'multiprocessCompatible' flag as false ***/
|
|
user_pref("dom.ipc.shims.enabledWarnings", true);
|
|
/* 1110: set sandbox level. DO NOT MEDDLE WITH THESE. They are included to inform you NOT to play
|
|
* with them. The values are integers, but the code below deliberately contains a data mismatch
|
|
* [1] https://wiki.mozilla.org/Sandbox
|
|
* [2] http://www.ghacks.net/2017/01/23/how-to-change-firefoxs-sandbox-security-level/#comment-4105173 */
|
|
// user_pref("security.sandbox.content.level", "donotuse")
|
|
// user_pref("dom.ipc.plugins.sandbox-level.default", "donotuse");
|
|
// user_pref("dom.ipc.plugins.sandbox-level.flash, "donotuse");
|
|
|
|
/*** 1200: HTTPS ( SSL/TLS / OCSP / CERTS / HSTS / HPKP / CIPHERS )
|
|
Note that your cipher and other settings can be used server side as a fingerprint attack
|
|
vector, see [1] (It's quite technical but the first part is easy to understand
|
|
and you can stop reading when you reach the second section titled "Enter Bro")
|
|
|
|
Option 1: Use our settings to tighten up encryption options. It *is* a fingerprinting attack
|
|
vector, and we certainly do want to reduce any attack surface, but this is not how
|
|
you *DEFEAT* fingerprinting - to do that you need large numbers to buy into the same
|
|
enforced browser-wide settings (such as TBB), and/or you use OpSec.
|
|
Option 2: Use Firefox defaults for the 1260's items (item 1260 default for SHA-1, is local only
|
|
anyway). There is nothing *weak* about Firefox's defaults, but Mozilla (and other
|
|
browsers) will always lag for fear of breakage and upset end-users
|
|
|
|
[1] https://www.securityartwork.es/2017/02/02/tls-client-fingerprinting-with-bro/
|
|
***/
|
|
user_pref("ghacks_user.js.parrot", "1200 syntax error: the parrot's a stiff!");
|
|
/** SSL (Secure Sockets Layer) / TLS (Transport Layer Security) ***/
|
|
/* 1201: reject communication with servers using old SSL/TLS - vulnerable to a MiTM attack
|
|
* [WARNING] tested Feb 2017 - still breaks too many sites
|
|
* [1] https://wiki.mozilla.org/Security:Renegotiation ***/
|
|
// user_pref("security.ssl.require_safe_negotiation", true);
|
|
/* 1202: control TLS versions with min and max
|
|
* 1=min version of TLS 1.0, 2-min version of TLS 1.1, 3=min version of TLS 1.2 etc
|
|
* [WARNING] FF/chrome currently allow TLS 1.0 by default, so this is your call.
|
|
* [1] http://kb.mozillazine.org/Security.tls.version.*
|
|
* [2] https://www.ssl.com/how-to/turn-off-ssl-3-0-and-tls-1-0-in-your-browser/ ***/
|
|
// user_pref("security.tls.version.min", 2);
|
|
// user_pref("security.tls.version.fallback-limit", 3);
|
|
// user_pref("security.tls.version.max", 4); // 4 = allow up to and including TLS 1.3
|
|
/* 1203: disable SSL session tracking (FF36+)
|
|
* SSL Session IDs speed up HTTPS connections (no need to renegotiate) and last for 48hrs.
|
|
* Since the ID is unique, web servers can (and do) use it for tracking. If set to true,
|
|
* this disables sending SSL Session IDs and TLS Session Tickets to prevent session tracking
|
|
* [1] https://tools.ietf.org/html/rfc5077
|
|
* [2] https://bugzilla.mozilla.org/show_bug.cgi?id=967977 ***/
|
|
user_pref("security.ssl.disable_session_identifiers", true); // (hidden pref)
|
|
/** OCSP (Online Certificate Status Protocol) ***/
|
|
/* 1210: enable OCSP Stapling
|
|
* [1] https://blog.mozilla.org/security/2013/07/29/ocsp-stapling-in-firefox/ ***/
|
|
user_pref("security.ssl.enable_ocsp_stapling", true);
|
|
/* 1211: query OCSP responder servers to confirm current validity of certificates
|
|
* 0=disable, 1=validate only certificates that specify an OCSP service URL (default)
|
|
* 2=enable and use values in security.OCSP.URL and security.OCSP.signing.
|
|
* OCSP (non-stapled) leaks information about the sites you visit to the CA (cert authority)
|
|
* It's a trade-off between security (checking) and privacy (leaking info to the CA)
|
|
* [1] https://en.wikipedia.org/wiki/Ocsp ***/
|
|
user_pref("security.OCSP.enabled", 1);
|
|
/* 1212: require certificate revocation check through OCSP protocol
|
|
* [WARNING] Since FF44 the default is false. If set to true, this may/will cause some
|
|
* site breakage. Some users have previously mentioned issues with youtube, microsoft etc ***/
|
|
// user_pref("security.OCSP.require", true);
|
|
/** CERTS / HSTS (HTTP Strict Transport Security) / HPKP (HTTP Public Key Pinning) ***/
|
|
/* 1220: disable Microsoft Family Safety cert (Windows 8.1) (FF50+)
|
|
* 0 = disable detecting Family Safety mode and importing the root
|
|
* 1 = only attempt to detect Family Safety mode (don't import the root)
|
|
* 2 = detect Family Safety mode and import the root ***/
|
|
user_pref("security.family_safety.mode", 0);
|
|
/* 1221: disable intermediate certificate caching (fingerprinting attack vector)
|
|
* [NOTE] This may be better handled under FPI (ticket 1323644, part of Tor Uplift)
|
|
* [WARNING] This affects login/cert/key dbs. The effect is all credentials are session-only.
|
|
* Saved logins and passwords are not available. Reset the pref and restart to return them.
|
|
* [TEST] https://fiprinca.0x90.eu/poc/
|
|
* [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1334485 - related bug
|
|
* [2] https://bugzilla.mozilla.org/show_bug.cgi?id=1216882 - related bug (see comment 9) ***/
|
|
// user_pref("security.nocertdb", true); // (hidden pref)
|
|
/* 1222: enforce strict pinning
|
|
** PKP (Public Key Pinning) 0=disabled 1=allow user MiTM (such as your antivirus), 2=strict
|
|
* [WARNING] If you rely on an AV (antivirus) to protect your web browsing
|
|
* by inspecting ALL your web traffic, then leave at current default=1
|
|
* [1] https://trac.torproject.org/projects/tor/ticket/16206 ***/
|
|
user_pref("security.cert_pinning.enforcement_level", 2);
|
|
/* 1223: enforce HSTS preload list (default is true)
|
|
* The list is compiled into Firefox and used to always load those domains over HTTPS
|
|
* [1] https://blog.mozilla.org/security/2012/11/01/preloading-hsts/
|
|
* [2] https://wiki.mozilla.org/Privacy/Features/HSTS_Preload_List ***/
|
|
user_pref("network.stricttransportsecurity.preloadlist", true);
|
|
/** MIXED CONTENT ***/
|
|
/* 1240: disable insecure active content on https pages - mixed content ***/
|
|
user_pref("security.mixed_content.block_active_content", true);
|
|
/* 1241: disable insecure passive content (such as images) on https pages - mixed context
|
|
* [WARNING] when set to true, this will visually break many sites (March 2017) ***/
|
|
// user_pref("security.mixed_content.block_display_content", true);
|
|
/* 1242: allow Mixed-Content-Blocker to use the HSTS cache but disable the HSTS Priming requests (FF51+)
|
|
* Allow resources from domains with an existing HSTS cache record or in the HSTS preload list
|
|
* to be upgraded to HTTPS internally but disable sending out HSTS Priming requests, because
|
|
* those may cause noticeable delays eg requests time out or are not handled well by servers
|
|
* [NOTE] if you want to use the priming requests make sure 'use_hsts' is also true
|
|
* [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1246540#c145 ***/
|
|
user_pref("security.mixed_content.use_hsts", true);
|
|
user_pref("security.mixed_content.send_hsts_priming", false);
|
|
/** CIPHERS [see the section 1200 intro] ***/
|
|
/* 1260: disable or limit SHA-1
|
|
* 0 = all SHA1 certs are allowed
|
|
* 1 = all SHA1 certs are blocked (including perfectly valid ones from 2015 and earlier)
|
|
* 2 = deprecated option that now maps to 1
|
|
* 3 = only allowed for locally-added roots (e.g. anti-virus)
|
|
* 4 = only allowed for locally-added roots or for certs in 2015 and earlier
|
|
* [WARNING] when disabled, some man-in-the-middle devices (eg security scanners and
|
|
* antivirus products, may fail to connect to HTTPS sites. SHA-1 is *almost* obsolete.
|
|
* [1] https://blog.mozilla.org/security/2016/10/18/phasing-out-sha-1-on-the-public-web/ ***/
|
|
user_pref("security.pki.sha1_enforcement_level", 1);
|
|
/* 1261: disable 3DES (effective key size < 128)
|
|
* [1] https://en.wikipedia.org/wiki/3des#Security
|
|
* [2] http://en.citizendium.org/wiki/Meet-in-the-middle_attack
|
|
* [3] http://www-archive.mozilla.org/projects/security/pki/nss/ssl/fips-ssl-ciphersuites.html ***/
|
|
user_pref("security.ssl3.rsa_des_ede3_sha", false);
|
|
/* 1262: disable 128 bits ***/
|
|
user_pref("security.ssl3.ecdhe_ecdsa_aes_128_sha", false);
|
|
user_pref("security.ssl3.ecdhe_rsa_aes_128_sha", false);
|
|
/* 1263: disable DHE (Diffie-Hellman Key Exchange)
|
|
* [WARNING] may break obscure sites, but not major sites, which should support ECDH over DHE
|
|
* [1] https://www.eff.org/deeplinks/2015/10/how-to-protect-yourself-from-nsa-attacks-1024-bit-DH ***/
|
|
user_pref("security.ssl3.dhe_rsa_aes_128_sha", false);
|
|
user_pref("security.ssl3.dhe_rsa_aes_256_sha", false);
|
|
/* 1264: disable the remaining non-modern cipher suites as of FF52
|
|
* [NOTE] commented out because it still breaks too many sites ***/
|
|
// user_pref("security.ssl3.rsa_aes_128_sha", false);
|
|
// user_pref("security.ssl3.rsa_aes_256_sha", false);
|
|
/* 1265: block rc4 fallback (will be deprecated in 53) ***/
|
|
user_pref("security.tls.unrestricted_rc4_fallback", false);
|
|
/** UI (User Interface) ***/
|
|
/* 1270: display warning (red padlock) for "broken security"
|
|
* [1] https://wiki.mozilla.org/Security:Renegotiation ***/
|
|
user_pref("security.ssl.treat_unsafe_negotiation_as_broken", true);
|
|
/* 1271: control "Add Security Exception" dialog on SSL warnings
|
|
* 0=do neither 1=pre-populate url 2+pre-populate url + pre-fetch cert (default)
|
|
* [1] https://github.com/pyllyukko/user.js/issues/210 ***/
|
|
user_pref("browser.ssl_override_behavior", 1);
|
|
/* 1272: display advanced information on Insecure Connection warning pages
|
|
* only works when it's possible to add an exception
|
|
* i.e doesn't work for HSTS discrepancies (https://subdomain.preloaded-hsts.badssl.com/)
|
|
* [TEST] https://expired.badssl.com/ ***/
|
|
user_pref("browser.xul.error_pages.expert_bad_cert", true);
|
|
|
|
/*** 1400: FONTS ***/
|
|
user_pref("ghacks_user.js.parrot", "1400 syntax error: the parrot's bereft of life!");
|
|
/* 1401: disable websites choosing fonts (0=block, 1=allow)
|
|
* If you disallow fonts, this drastically limits/reduces font
|
|
* enumeration (by JS) which is a high entropy fingerprinting vector.
|
|
* [SETTING] Options>Content>Font & Colors>Advanced>Allow pages to choose...
|
|
* [SETUP] Disabling fonts can uglify the web a fair bit. ***/
|
|
user_pref("browser.display.use_document_fonts", 0);
|
|
/* 1402: allow icon fonts (glyphs) (FF41+) ***/
|
|
user_pref("gfx.downloadable_fonts.enabled", true);
|
|
/* 1403: disable rendering of SVG OpenType fonts
|
|
* [1] https://wiki.mozilla.org/SVGOpenTypeFonts - iSECPartnersReport recommends to disable this ***/
|
|
user_pref("gfx.font_rendering.opentype_svg.enabled", false);
|
|
/* 1404: use more legible default fonts
|
|
* [SETTING] Options>Fonts & Colors>Advanced>Serif|Sans-serif|Monospace
|
|
* [SETUP] These are optional, comment out if you do not require them
|
|
* [NOTE] Been using this for well over a year, it really grows on you ***/
|
|
user_pref("font.name.serif.x-unicode", "Georgia");
|
|
user_pref("font.name.serif.x-western", "Georgia"); // default Times New Roman
|
|
user_pref("font.name.sans-serif.x-unicode", "Arial");
|
|
user_pref("font.name.sans-serif.x-western", "Arial"); // default Arial
|
|
user_pref("font.name.monospace.x-unicode", "Lucida Console");
|
|
user_pref("font.name.monospace.x-western", "Lucida Console"); // default Courier New
|
|
/* 1405: disable WOFF2 (Web Open Font Format) ***/
|
|
user_pref("gfx.downloadable_fonts.woff2.enabled", false);
|
|
/* 1406: disable CSS Font Loading API
|
|
* [SETUP] Disabling fonts can uglify the web a fair bit. ***/
|
|
user_pref("layout.css.font-loading-api.enabled", false);
|
|
/* 1407: remove special underline handling for a few fonts which you will probably never use.
|
|
* Any of these fonts on your system can be enumerated for fingerprinting. Requires restart.
|
|
* [1] http://kb.mozillazine.org/Font.blacklist.underline_offset ***/
|
|
user_pref("font.blacklist.underline_offset", "");
|
|
/* 1408: disable graphite which FF49 turned back on by default
|
|
* In the past it had security issues - need citation ***/
|
|
user_pref("gfx.font_rendering.graphite.enabled", false);
|
|
/* 1409: only expose whitelisted system fonts (FF52+)
|
|
* If the whitelist is empty, then whitelisting is considered disabled and all fonts are allowed.
|
|
* [NOTE] Creating your own probably highly-unique whitelist will raise your entropy. If
|
|
* you block sites choosing fonts in 1401, this preference is irrelevant. In future,
|
|
* privacy.resistFingerprinting (see 2699) may cover this, and 1401 can be relaxed.
|
|
* [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1121643 ***/
|
|
// user_pref("font.system.whitelist", ""); // (hidden pref)
|
|
|
|
/*** 1600: HEADERS / REFERERS [SETUP]
|
|
Except for DNT (Do Not Track), referers are best controlled by an extension.
|
|
It is important to realize that it is *cross domain* referers that need
|
|
controlling, and this is best handled by EITHER 1603 or 1604, not both.
|
|
|
|
Option 1: Recommended: Use an extension to block all referers, and then whitelist
|
|
sites on a granular, per domain level.
|
|
Option 2: As per the original settings below: Set XOriginPolicy (1603) to 1 (less breakage)
|
|
or 2 (more breakage) and leave XOriginTrimmingPolicy (1604) at default 0
|
|
Option 3: Set XOriginPolicy (1603) to default 0 and set XOriginTrimmingPolicy (1604) to 2
|
|
|
|
full URI: https://example.com:8888/foo/bar.html?id=1234
|
|
scheme+host+path+port: https://example.com:8888/foo/bar.html
|
|
scheme+host+port: https://example.com:8888
|
|
|
|
#Required reading [#] https://feeding.cloud.geek.nz/posts/tweaking-referrer-for-privacy-in-firefox/
|
|
***/
|
|
user_pref("ghacks_user.js.parrot", "1600 syntax error: the parrot rests in peace!");
|
|
/* 1601: ALL: control when images/links send a referer
|
|
* 0=never, 1=send only when links are clicked, 2=for links and images (default)
|
|
* [NOTE] Recommended left at default. Focus on XSS and granular cross origin referer control ***/
|
|
user_pref("network.http.sendRefererHeader", 2);
|
|
/* 1602: ALL: control the amount of information to send
|
|
* 0=send full URI (default), 1=scheme+host+path+port, 2=scheme+host+port
|
|
* [NOTE] Cross origin requests can be fine tuned in 1603 + 1604. Limiting same origin requests
|
|
* is rather pointless. Recommended left at default for zero same origin breakage ***/
|
|
user_pref("network.http.referer.trimmingPolicy", 0);
|
|
/* 1603: CROSS ORIGIN: fine-tune when to send a referer [SETUP]
|
|
* 0=always (default), 1=only if base domains match, 2=only if hosts match
|
|
* [NOTE] 1 = less breakage, possible leakage 2 = less leakage, more breakage ***/
|
|
user_pref("network.http.referer.XOriginPolicy", 1);
|
|
/* 1604: CROSS ORIGIN: control the amount of information to send (FF52+)
|
|
* 0=send full URI (default) 1=scheme+host+path+port 2=scheme+host+port ***/
|
|
user_pref("network.http.referer.XOriginTrimmingPolicy", 0);
|
|
/* 1605: ALL: disable spoofing a referer
|
|
* Spoofing increases your exposure to cross-site request forgeries ***/
|
|
user_pref("network.http.referer.spoofSource", false);
|
|
/* 1606: ALL: set the default Referrer Policy (FF53+)
|
|
* 0=no-referer 1=same-origin 2=strict-origin-when-cross-origin
|
|
* 3=no-referrer-when-downgrade (default)
|
|
* [NOTE] This is only a default, it can be overridden by a site-controlled Referrer Policy
|
|
* [1] https://www.w3.org/TR/referrer-policy/
|
|
* [2] https://bugzilla.mozilla.org/show_bug.cgi?id=1304623 ***/
|
|
// user_pref("network.http.referer.userControlPolicy", 3);
|
|
/* 1610: ALL: disable the DNT HTTP header (this is essentially USELESS and raises entropy)
|
|
* [SETTING] Options>Privacy>Tracking>Request that sites not track you
|
|
* [NOTE] if you use NoScript MAKE SURE to set the pref noscript.doNotTrack.enabled to match ***/
|
|
user_pref("privacy.donottrackheader.enabled", false);
|
|
|
|
/*** 1800: PLUGINS ***/
|
|
user_pref("ghacks_user.js.parrot", "1800 syntax error: the parrot's pushing up daisies!");
|
|
/* 1801: set default plugin state (i.e new plugins on discovery) to never activate
|
|
* 0=disabled, 1=ask to activate, 2=active - you can override individual plugins ***/
|
|
user_pref("plugin.default.state", 0);
|
|
user_pref("plugin.defaultXpi.state", 0);
|
|
/* 1802: enable click to play and set to 0 minutes ***/
|
|
user_pref("plugins.click_to_play", true);
|
|
user_pref("plugin.sessionPermissionNow.intervalInMinutes", 0);
|
|
/* 1803: make sure a plugin is in a certain state: 0=deactivated 1=ask 2=enabled (Flash example)
|
|
* you can set all these plugin.state's via Add-ons>Plugins or search for plugin.state in about:config
|
|
* [NOTE] you can still over-ride individual sites eg youtube via site permissions
|
|
* [1] http://www.ghacks.net/2013/07/09/how-to-make-sure-that-a-firefox-plugin-never-activates-again/ ***/
|
|
// user_pref("plugin.state.flash", 0);
|
|
/* 1804: disable plugins using external/untrusted scripts with XPCOM or XPConnect ***/
|
|
user_pref("security.xpconnect.plugin.unrestricted", false);
|
|
/* 1805: disable scanning for plugins
|
|
* [1] http://kb.mozillazine.org/Plugin_scanning
|
|
* plid.all = whether to scan the directories specified in the Windows registry for PLIDs
|
|
* includes: RealPlayer, Next-Generation Java Plug-In, Adobe Flash, Antivirus etc
|
|
* [WARNING] [SETUP] This means Firefox will not load ANY plugins. Try it. You are not missing anything. ***/
|
|
user_pref("plugin.scan.plid.all", false);
|
|
/* 1806: Acrobat, Quicktime, WMP are handled separately from 1805 above.
|
|
* The string refers to min version number allowed ***/
|
|
user_pref("plugin.scan.Acrobat", "99999");
|
|
user_pref("plugin.scan.Quicktime", "99999");
|
|
user_pref("plugin.scan.WindowsMediaPlayer", "99999");
|
|
/* 1820: disable all GMP (Gecko Media Plugins) [SETUP]
|
|
* [1] https://wiki.mozilla.org/GeckoMediaPlugins ***/
|
|
user_pref("media.gmp-provider.enabled", false);
|
|
user_pref("media.gmp.trial-create.enabled", false);
|
|
/* 1825: disable widevine CDM (Content Decryption Module) [SETUP] ***/
|
|
user_pref("media.gmp-widevinecdm.visible", false);
|
|
user_pref("media.gmp-widevinecdm.enabled", false);
|
|
user_pref("media.gmp-widevinecdm.autoupdate", false);
|
|
/* 1830: disable all DRM content (EME: Encryption Media Extension) [SETUP] ***/
|
|
user_pref("media.eme.enabled", false); // Options>Content>Play DRM Content
|
|
user_pref("browser.eme.ui.enabled", false); // hides "Play DRM Content" checkbox, restart required
|
|
user_pref("media.eme.apiVisible", false); // block websites detecting DRM is disabled
|
|
/* 1840: disable the OpenH264 Video Codec by Cisco to "Never Activate"
|
|
* and disable pings to the external update/download server
|
|
* This is the bundled codec used for video chat in WebRTC ***/
|
|
user_pref("media.gmp-gmpopenh264.enabled", false); // (hidden pref)
|
|
user_pref("media.gmp-gmpopenh264.autoupdate", false);
|
|
user_pref("media.gmp-manager.url", "data:text/plain,");
|
|
|
|
/*** 2000: MEDIA / CAMERA / MIKE ***/
|
|
user_pref("ghacks_user.js.parrot", "2000 syntax error: the parrot's snuffed it!");
|
|
/* 2001: disable WebRTC (Web Real-Time Communication)
|
|
* [1] https://www.privacytools.io/#webrtc ***/
|
|
user_pref("media.peerconnection.enabled", false);
|
|
user_pref("media.peerconnection.use_document_iceservers", false);
|
|
user_pref("media.peerconnection.video.enabled", false);
|
|
user_pref("media.peerconnection.identity.enabled", false);
|
|
user_pref("media.peerconnection.identity.timeout", 1);
|
|
user_pref("media.peerconnection.turn.disable", true);
|
|
user_pref("media.navigator.video.enabled", false); // video capability for WebRTC
|
|
/* 2002: pref which improves the WebRTC IP Leak issue, as opposed to completely
|
|
* disabling WebRTC. You still need to enable WebRTC for this to be applicable (FF42+)
|
|
* [1] https://wiki.mozilla.org/Media/WebRTC/Privacy ***/
|
|
user_pref("media.peerconnection.ice.default_address_only", true); // (FF41-FF50)
|
|
user_pref("media.peerconnection.ice.no_host", true); // (FF51+)
|
|
/* 2010: disable WebGL (Web Graphics Library), force bare minimum feature set if used & disable WebGL extensions
|
|
* [1] http://www.contextis.com/resources/blog/webgl-new-dimension-browser-exploitation/
|
|
* [2] https://security.stackexchange.com/questions/13799/is-webgl-a-security-concern ***/
|
|
user_pref("webgl.disabled", true);
|
|
user_pref("pdfjs.enableWebGL", false);
|
|
user_pref("webgl.min_capability_mode", true);
|
|
user_pref("webgl.disable-extensions", true);
|
|
user_pref("webgl.disable-fail-if-major-performance-caveat", true);
|
|
/* 2011: don't make WebGL debug info available to websites
|
|
* [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1171228
|
|
* [2] https://developer.mozilla.org/en-US/docs/Web/API/WEBGL_debug_renderer_info ***/
|
|
user_pref("webgl.enable-debug-renderer-info", false);
|
|
/* 2012: two more webgl preferences (FF51+) ***/
|
|
user_pref("webgl.dxgl.enabled", false);
|
|
user_pref("webgl.enable-webgl2", false);
|
|
/* 2021: disable speech recognition
|
|
* [1] https://developer.mozilla.org/en-US/docs/Web/API/SpeechRecognition
|
|
* [2] https://developer.mozilla.org/en-US/docs/Web/API/SpeechSynthesis
|
|
* [3] https://wiki.mozilla.org/HTML5_Speech_API ***/
|
|
user_pref("media.webspeech.recognition.enable", false);
|
|
user_pref("media.webspeech.synth.enabled", false);
|
|
/* 2022: disable screensharing ***/
|
|
user_pref("media.getusermedia.screensharing.enabled", false);
|
|
user_pref("media.getusermedia.screensharing.allowed_domains", "");
|
|
user_pref("media.getusermedia.screensharing.allow_on_old_platforms", false);
|
|
user_pref("media.getusermedia.browser.enabled", false);
|
|
user_pref("media.getusermedia.audiocapture.enabled", false);
|
|
/* 2023: disable camera stuff ***/
|
|
user_pref("camera.control.face_detection.enabled", false);
|
|
/* 2024: enable/disable MSE (Media Source Extensions)
|
|
* [1] http://www.ghacks.net/2014/05/10/enable-media-source-extensions-firefox/ ***/
|
|
user_pref("media.mediasource.enabled", true);
|
|
user_pref("media.mediasource.mp4.enabled", true);
|
|
user_pref("media.mediasource.webm.audio.enabled", true);
|
|
user_pref("media.mediasource.webm.enabled", true);
|
|
/* 2026: disable canvas capture stream
|
|
* [1] https://developer.mozilla.org/en-US/docs/Web/API/HTMLCanvasElement/captureStream ***/
|
|
user_pref("canvas.capturestream.enabled", false);
|
|
/* 2027: disable camera image capture
|
|
* [1] https://trac.torproject.org/projects/tor/ticket/16339 ***/
|
|
user_pref("dom.imagecapture.enabled", false);
|
|
/* 2028: disable offscreen canvas
|
|
* [1] https://developer.mozilla.org/en-US/docs/Web/API/OffscreenCanvas ***/
|
|
user_pref("gfx.offscreencanvas.enabled", false);
|
|
/* 2030: disable auto-play of HTML5 media
|
|
* [WARNING] This may break video playback on various sites ***/
|
|
user_pref("media.autoplay.enabled", false);
|
|
/* 2031: disable audio auto-play in non-active tabs (FF51+)
|
|
* [1] http://www.ghacks.net/2016/11/14/firefox-51-blocks-automatic-audio-playback-in-non-active-tabs/ ***/
|
|
user_pref("media.block-autoplay-until-in-foreground", true);
|
|
|
|
/*** 2200: UI MEDDLING
|
|
see http://kb.mozillazine.org/Prevent_websites_from_disabling_new_window_features ***/
|
|
user_pref("ghacks_user.js.parrot", "2200 syntax error: the parrot's 'istory!");
|
|
/* 2201: disable website control over browser right-click context menu
|
|
* [NOTE] Shift-Right-Click will always bring up the browser right-click context menu ***/
|
|
// user_pref("dom.event.contextmenu.enabled", false);
|
|
/* 2202: UI SPOOFING: disable scripts hiding or disabling the following on new windows ***/
|
|
user_pref("dom.disable_window_open_feature.location", true);
|
|
user_pref("dom.disable_window_open_feature.menubar", true);
|
|
user_pref("dom.disable_window_open_feature.resizable", true);
|
|
user_pref("dom.disable_window_open_feature.status", true);
|
|
user_pref("dom.disable_window_open_feature.toolbar", true);
|
|
/* 2203: POPUP windows - prevent or allow javascript UI meddling ***/
|
|
user_pref("dom.disable_window_flip", true); // window z-order
|
|
user_pref("dom.disable_window_move_resize", true);
|
|
user_pref("dom.disable_window_open_feature.close", true);
|
|
user_pref("dom.disable_window_open_feature.minimizable", true);
|
|
user_pref("dom.disable_window_open_feature.personalbar", true); //bookmarks toolbar
|
|
user_pref("dom.disable_window_open_feature.titlebar", true);
|
|
user_pref("dom.disable_window_status_change", true);
|
|
user_pref("dom.allow_scripts_to_close_windows", false);
|
|
/* 2204: disable links opening in a new window
|
|
* This is to stop malicious window sizes and screen res leaks etc in conjunction
|
|
* with 2203 dom.disable_window_move_resize=true | 2418 full-screen-api.enabled=false
|
|
* [NOTE] You can still right click a link and select open in a new window
|
|
* [TEST] https://people.torproject.org/~gk/misc/entire_desktop.html
|
|
* [1] https://trac.torproject.org/projects/tor/ticket/9881 ***/
|
|
user_pref("browser.link.open_newwindow.restriction", 0);
|
|
/* 2205: disable "Confirm you want to leave" dialog on page close
|
|
* Does not prevent JS leaks of the page close event.
|
|
* [1] https://developer.mozilla.org/en-US/docs/Web/Events/beforeunload
|
|
* [2] https://support.mozilla.org/en-US/questions/1043508 ***/
|
|
user_pref("dom.disable_beforeunload", true);
|
|
|
|
/*** 2300: SERVICE WORKERS ***/
|
|
user_pref("ghacks_user.js.parrot", "2300 syntax error: the parrot's off the twig!");
|
|
/* 2301: disable workers API and service workers API
|
|
* [NOTE] CVE-2016-5259, CVE-2016-2812, CVE-2016-1949, CVE-2016-5287 (fixed)
|
|
* [WARNING] WILL break sites especially workers eg Google Street View
|
|
* [1] https://developer.mozilla.org/en-US/docs/Web/API/Worker
|
|
* [2] https://developer.mozilla.org/en-US/docs/Web/API/ServiceWorker_API
|
|
* [3] http://www.ghacks.net/2016/03/02/manage-service-workers-in-firefox-and-chrome/ ***/
|
|
user_pref("dom.workers.enabled", false);
|
|
user_pref("dom.serviceWorkers.enabled", false);
|
|
/* 2302: disable service workers cache and cache storage ***/
|
|
user_pref("dom.caches.enabled", false);
|
|
/* 2303: disable push notifications (FF44+) [requires serviceWorkers to be enabled]
|
|
* web apps can receive messages pushed to them from a server, whether or
|
|
* not the web app is in the foreground, or even currently loaded
|
|
* [WARNING] may affect social media sites like Twitter
|
|
* [1] https://developer.mozilla.org/en/docs/Web/API/Push_API ***/
|
|
user_pref("dom.push.enabled", false);
|
|
user_pref("dom.push.connection.enabled", false);
|
|
user_pref("dom.push.serverURL", "");
|
|
user_pref("dom.push.userAgentID", "");
|
|
/* 2304: disable web/push notifications
|
|
* [NOTE] you can still override individual domains under site permissions (FF44+)
|
|
* [WARNING] may affect social media sites like Twitter
|
|
* [1] https://developer.mozilla.org/en-US/docs/Web/API/notification ***/
|
|
user_pref("dom.webnotifications.enabled", false);
|
|
user_pref("dom.webnotifications.serviceworker.enabled", false);
|
|
|
|
/*** 2400: DOM & JAVASCRIPT ***/
|
|
user_pref("ghacks_user.js.parrot", "2400 syntax error: the parrot's kicked the bucket!");
|
|
/* 2402: disable website access to clipboard events/content
|
|
* [WARNING] This will break some sites functionality such as pasting into facebook, wordpress
|
|
* this applies to onCut, onCopy, onPaste events - i.e you have to interact with
|
|
* the website for it to look at the clipboard
|
|
* [1] http://www.ghacks.net/2014/01/08/block-websites-reading-modifying-clipboard-contents-firefox/ ***/
|
|
user_pref("dom.event.clipboardevents.enabled", false);
|
|
/* 2403: disable clipboard commands (cut/copy) from "non-privileged" content
|
|
* this disables document.execCommand("cut"/"copy") to protect your clipboard
|
|
* [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1170911 ***/
|
|
user_pref("dom.allow_cut_copy", false); // (hidden pref)
|
|
/* 2404: disable JS storing data permanently
|
|
* If you block indexedDB but would like a toggle button, try the following add-on
|
|
* This setting WAS under about:permissions>All Sites>Maintain Offline Storage
|
|
* [NOTE] about:permissions is no longer available since FF46 but you can still override
|
|
* individual domains: use info icon in urlbar etc or right click on a web page>view page info
|
|
* [WARNING] [SETUP] If set as false (disabled), this WILL break some [old] add-ons and DOES
|
|
* break a lot of sites' functionality. Applies to websites, add-ons and session data.
|
|
* [1] https://addons.mozilla.org/en-US/firefox/addon/disable-indexeddb/ ***/
|
|
user_pref("dom.indexedDB.enabled", false);
|
|
/* 2410: disable User Timing API
|
|
* [1] https://trac.torproject.org/projects/tor/ticket/16336 ***/
|
|
user_pref("dom.enable_user_timing", false);
|
|
/* 2411: disable resource/navigation timing ***/
|
|
user_pref("dom.enable_resource_timing", false);
|
|
/* 2412: disable timing attacks - javascript performance fingerprinting
|
|
* [1] https://wiki.mozilla.org/Security/Reviews/Firefox/NavigationTimingAPI ***/
|
|
user_pref("dom.enable_performance", false);
|
|
/* 2414: disable shaking the screen ***/
|
|
user_pref("dom.vibrator.enabled", false);
|
|
/* 2415: max popups from a single non-click event - default is 20! ***/
|
|
user_pref("dom.popup_maximum", 3);
|
|
/* 2415b: limit events that can cause a popup
|
|
* default is "change click dblclick mouseup notificationclick reset submit touchend"
|
|
* [1] http://kb.mozillazine.org/Dom.popup_allowed_events ***/
|
|
user_pref("dom.popup_allowed_events", "click dblclick");
|
|
/* 2416: disable idle observation ***/
|
|
user_pref("dom.idle-observers-api.enabled", false);
|
|
/* 2418: disable full-screen API
|
|
* This setting WAS under about:permissions>All Sites>Fullscreen
|
|
* [NOTE] about:permissions is no longer available since FF46 but you can still override
|
|
* individual domains: use info icon in urlbar etc or right click on a web page>view page info
|
|
* set to false=block, set to true=ask ***/
|
|
user_pref("full-screen-api.enabled", false);
|
|
/* 2420: disable support for asm.js ( http://asmjs.org/ )
|
|
* [1] https://www.mozilla.org/en-US/security/advisories/mfsa2015-29/
|
|
* [2] https://www.mozilla.org/en-US/security/advisories/mfsa2015-50/
|
|
* [3] https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-2712 ***/
|
|
user_pref("javascript.options.asmjs", false);
|
|
/* 2421: in addition to 2420, these settings will help harden JS against exploits such as CVE-2015-0817
|
|
* [WARNING] causes the odd site issue and there is also a performance loss
|
|
* [1] https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-0817 ***/
|
|
// user_pref("javascript.options.ion", false);
|
|
// user_pref("javascript.options.baselinejit", false);
|
|
/* 2422: disable WebAssembly for now (FF52+)
|
|
* [1] https://developer.mozilla.org/en-US/docs/WebAssembly ***/
|
|
user_pref("javascript.options.wasm", false);
|
|
/* 2425: disable ArchiveAPI i.e reading content of archives, such as zip files, directly
|
|
* in the browser, through DOM file objects. Default is false. ***/
|
|
user_pref("dom.archivereader.enabled", false);
|
|
/* 2450a: force Firefox to tell you if a website asks to store data for offline use
|
|
* [1] https://support.mozilla.org/en-US/questions/1098540
|
|
* [2] https://bugzilla.mozilla.org/show_bug.cgi?id=959985 ***/
|
|
user_pref("offline-apps.allow_by_default", false);
|
|
/* 2450b: display a notification when websites offer data for offline use
|
|
* [SETTING] Options>Advanced>Network>Tell me when a website asks to store data for offline use ***/
|
|
user_pref("browser.offline-apps.notify", true);
|
|
/* 2450c: change size of warning quota for offline cache (default 51200)
|
|
* Offline cache is only used in rare cases to store data locally. FF will store small amounts
|
|
* (default <50MB) of data in the offline (application) cache without asking for permission. ***/
|
|
// user_pref("offline-apps.quota.warn", 51200);
|
|
|
|
/*** 2500: HARDWARE FINGERPRINTING ***/
|
|
user_pref("ghacks_user.js.parrot", "2500 syntax error: the parrot's shuffled off 'is mortal coil!");
|
|
/* 2501: disable gamepad API - USB device ID enumeration
|
|
* [1] https://trac.torproject.org/projects/tor/ticket/13023 ***/
|
|
user_pref("dom.gamepad.enabled", false);
|
|
/* 2503: disable giving away network info
|
|
* eg bluetooth, cellular, ethernet, wifi, wimax, other, mixed, unknown, none
|
|
* [1] https://developer.mozilla.org/en-US/docs/Web/API/Network_Information_API
|
|
* [2] https://wicg.github.io/netinfo/
|
|
* [3] https://bugzilla.mozilla.org/show_bug.cgi?id=960426 ***/
|
|
user_pref("dom.netinfo.enabled", false);
|
|
/* 2504: disable virtual reality devices
|
|
* [1] https://developer.mozilla.org/en-US/docs/Web/API/WebVR_API ***/
|
|
user_pref("dom.vr.enabled", false);
|
|
user_pref("dom.vr.oculus.enabled", false);
|
|
user_pref("dom.vr.osvr.enabled", false); // (FF49+)
|
|
user_pref("dom.vr.openvr.enabled", false); // (FF51+)
|
|
/* 2505: disable media device enumeration (FF29+)
|
|
* [NOTE] media.peerconnection.enabled should also be set to false (see 2001)
|
|
* [1] https://wiki.mozilla.org/Media/getUserMedia
|
|
* [2] https://developer.mozilla.org/en-US/docs/Web/API/MediaDevices/enumerateDevices ***/
|
|
user_pref("media.navigator.enabled", false);
|
|
/* 2506: disable video statistics - JS performance fingerprinting
|
|
* [1] https://trac.torproject.org/projects/tor/ticket/15757 ***/
|
|
user_pref("media.video_stats.enabled", false);
|
|
/* 2507: disable keyboard fingerprinting (FF38+) (physical keyboards)
|
|
* The Keyboard API allows tracking the "read parameter" of pressed keys in forms on
|
|
* web pages. These parameters vary between types of keyboard layouts such as QWERTY,
|
|
* AZERTY, Dvorak, and between various languages, eg German vs English.
|
|
* [WARNING] Don't use if Android + physical keyboard
|
|
* [UPDATE] This MAY be incorporated better under privacy.resistFingerprinting (see 2699)
|
|
* [1] https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent/code
|
|
* [2] https://www.privacy-handbuch.de/handbuch_21v.htm ***/
|
|
user_pref("dom.keyboardevent.code.enabled", false);
|
|
user_pref("dom.beforeAfterKeyboardEvent.enabled", false);
|
|
user_pref("dom.keyboardevent.dispatch_during_composition", false);
|
|
/* 2508: disable hardware acceleration to reduce graphics fingerprinting
|
|
* [SETTING] Options>Advanced>General>Use hardware acceleration when available
|
|
* [NOTE] changing this option changes BOTH these preferences
|
|
* [WARNING] [SETUP] Affects text rendering (fonts will look different) and impacts video performance
|
|
* [1] https://wiki.mozilla.org/Platform/GFX/HardwareAcceleration ***/
|
|
user_pref("gfx.direct2d.disabled", true);
|
|
user_pref("layers.acceleration.disabled", true);
|
|
/* 2509: disable touch events [SETUP]
|
|
* fingerprinting attack vector - leaks screen res & actual screen coordinates
|
|
* [1] https://developer.mozilla.org/en-US/docs/Web/API/Touch_events
|
|
* [2] https://trac.torproject.org/projects/tor/ticket/10286 ***/
|
|
user_pref("dom.w3c_touch_events.enabled", 0);
|
|
/* 2510: disable Web Audio API (FF51+)
|
|
* [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1288359 ***/
|
|
user_pref("dom.webaudio.enabled", false);
|
|
/* 2511: disable MediaDevices change detection (FF51+) (enabled by default starting FF52+)
|
|
* [1] https://developer.mozilla.org/en-US/docs/Web/Events/devicechange
|
|
* [2] https://developer.mozilla.org/en-US/docs/Web/API/MediaDevices/ondevicechange ***/
|
|
user_pref("media.ondevicechange.enabled", false);
|
|
/* 2512: disable device sensor API
|
|
* [1] https://trac.torproject.org/projects/tor/ticket/15758 ***/
|
|
user_pref("device.sensors.enabled", false);
|
|
|
|
/*** 2600: MISC - LEAKS / FINGERPRINTING / PRIVACY / SECURITY ***/
|
|
user_pref("ghacks_user.js.parrot", "2600 syntax error: the parrot's run down the curtain!");
|
|
/* 2601: disable sending additional analytics to web servers
|
|
* [1] https://developer.mozilla.org/en-US/docs/Web/API/navigator.sendBeacon ***/
|
|
user_pref("beacon.enabled", false);
|
|
/* 2602: CIS 2.3.2 disable downloading on desktop ***/
|
|
user_pref("browser.download.folderList", 2);
|
|
/* 2603: always ask the user where to download - enforce user interaction for security ***/
|
|
user_pref("browser.download.useDownloadDir", false);
|
|
/* 2604: https://bugzilla.mozilla.org/show_bug.cgi?id=238789#c19 ***/
|
|
user_pref("browser.helperApps.deleteTempFileOnExit", true);
|
|
/* 2605: don't integrate activity into windows recent documents ***/
|
|
user_pref("browser.download.manager.addToRecentDocs", false);
|
|
/* 2606: disable hiding mime types (Options>Applications) not associated with a plugin ***/
|
|
user_pref("browser.download.hide_plugins_without_extensions", false);
|
|
/* 2607: disable page thumbnail collection
|
|
* look in profile/thumbnails directory - you may want to clean that out ***/
|
|
user_pref("browser.pagethumbnails.capturing_disabled", true); // (hidden pref)
|
|
/* 2608: disable JAR from opening Unsafe File Types ***/
|
|
user_pref("network.jar.open-unsafe-types", false);
|
|
/* 2611: disable WebIDE to prevent remote debugging and add-on downloads
|
|
* [1] https://trac.torproject.org/projects/tor/ticket/16222 ***/
|
|
user_pref("devtools.webide.autoinstallADBHelper", false);
|
|
user_pref("devtools.webide.autoinstallFxdtAdapters", false);
|
|
user_pref("devtools.debugger.remote-enabled", false);
|
|
user_pref("devtools.webide.enabled", false);
|
|
/* 2612: disable SimpleServiceDiscovery - which can bypass proxy settings - eg Roku
|
|
* [1] https://trac.torproject.org/projects/tor/ticket/16222 ***/
|
|
user_pref("browser.casting.enabled", false);
|
|
user_pref("gfx.layerscope.enabled", false);
|
|
/* 2614: disable SPDY as it can contain identifiers
|
|
* [1] https://www.torproject.org/projects/torbrowser/design/#identifier-linkability (no. 10) ***/
|
|
user_pref("network.http.spdy.enabled", false);
|
|
user_pref("network.http.spdy.enabled.deps", false);
|
|
/* 2615: disable http2 for now as well ***/
|
|
user_pref("network.http.spdy.enabled.http2", false);
|
|
/* 2617: enable pdf.js as an option to preview PDFs within Firefox - EXPLOIT risk
|
|
* Enabling this (set to true) will change your option most likely to "Ask" or "Open with
|
|
* some external pdf reader". This does NOT necessarily prevent pdf.js being used via
|
|
* other means, it only removes the option. We recommend this is left at default (false).
|
|
* 1. It won't stop JS bypassing it. 2. Depending on external pdf viewers there is just as
|
|
* much risk or more (acrobat). 3. Mozilla are very quick to patch these sorts of exploits,
|
|
* they treat them as severe/critical and 4. for convenience
|
|
* [SETTING] Options>Applications>Portable Document Format (PDF)
|
|
* [SETUP] By all means, use an external app you consider MORE secure ***/
|
|
user_pref("pdfjs.disabled", false);
|
|
/* 2618: when using SOCKS have the proxy server do the DNS lookup - DNS leak issue
|
|
* eg in TOR, this stops your local DNS server from knowing your Tor destination
|
|
* as a remote Tor node will handle the DNS request
|
|
* [1] http://kb.mozillazine.org/Network.proxy.socks_remote_dns
|
|
* [2] https://trac.torproject.org/projects/tor/wiki/doc/TorifyHOWTO/WebBrowsers ***/
|
|
user_pref("network.proxy.socks_remote_dns", true);
|
|
/* 2619: limit HTTP redirects (this does not control redirects with HTML meta tags or JS)
|
|
* [WARNING] a low setting of 5 or under will probably break some sites (eg gmail logins)
|
|
* To control HTML Meta tag and JS redirects, use an add-on (eg NoRedirect). Default is 20 ***/
|
|
user_pref("network.http.redirection-limit", 10);
|
|
/* 2620: disable middle mouse click opening links from clipboard
|
|
* [1] https://trac.torproject.org/projects/tor/ticket/10089
|
|
* [2] http://kb.mozillazine.org/Middlemouse.contentLoadURL ***/
|
|
user_pref("middlemouse.contentLoadURL", false);
|
|
/* 2621: disable IPv6 (included for knowledge ONLY [WARNING] do not do this)
|
|
* This is all about covert channels such as MAC addresses being included/abused in the
|
|
* IPv6 protocol for tracking. If you want to mask your IP address, this is not the way
|
|
* to do it. It's 2016, IPv6 is here. Here are some old links
|
|
* 2010: https://www.christopher-parsons.com/ipv6-and-the-future-of-privacy/
|
|
* 2011: https://iapp.org/news/a/2011-09-09-facing-the-privacy-implications-of-ipv6
|
|
* 2012: http://www.zdnet.com/article/security-versus-privacy-with-ipv6-deployment/
|
|
* [NOTE] It is a myth that disabling IPv6 will speed up your internet connection
|
|
* [1] http://www.howtogeek.com/195062/no-disabling-ipv6-probably-wont-speed-up-your-internet-connection ***/
|
|
// user_pref("network.dns.disableIPv6", true);
|
|
// user_pref("network.http.fast-fallback-to-IPv4", true);
|
|
/* 2622: ensure you have a security delay when installing add-ons (milliseconds)
|
|
* default=1000, This also covers the delay in "Save" on downloading files.
|
|
* [1] http://kb.mozillazine.org/Disable_extension_install_delay_-_Firefox
|
|
* [2] http://www.squarefree.com/2004/07/01/race-conditions-in-security-dialogs/ ***/
|
|
user_pref("security.dialog_enable_delay", 700);
|
|
/* 2623: ensure Strict File Origin Policy on local files
|
|
* The default is true. Included for completeness
|
|
* [1] http://kb.mozillazine.org/Security.fileuri.strict_origin_policy ***/
|
|
user_pref("security.fileuri.strict_origin_policy", true);
|
|
/* 2624: enforce Subresource Integrity (SRI) (FF43+)
|
|
* The default is true. Included for completeness
|
|
* [1] https://developer.mozilla.org/en-US/docs/Web/Security/Subresource_Integrity
|
|
* [2] https://wiki.mozilla.org/Security/Subresource_Integrity ***/
|
|
user_pref("security.sri.enable", true);
|
|
/* 2625: Applications [non Tor protocol] SHOULD generate an error
|
|
* upon the use of .onion and SHOULD NOT perform a DNS lookup.
|
|
* [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1228457 ***/
|
|
user_pref("network.dns.blockDotOnion", true);
|
|
/* 2626: strip optional user agent token, default is false, included for completeness
|
|
* [1] https://developer.mozilla.org/en-US/docs/Web/HTTP/Gecko_user_agent_string_reference ***/
|
|
user_pref("general.useragent.compatMode.firefox", false);
|
|
/* 2628: disable UITour backend so there is no chance that a remote page can use it ***/
|
|
user_pref("browser.uitour.enabled", false);
|
|
user_pref("browser.uitour.url", "");
|
|
/* 2629: disable remote JAR files being opened, regardless of content type
|
|
* [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1215235 ***/
|
|
user_pref("network.jar.block-remote-files", true);
|
|
/* 2662: disable "open with" in download dialog (FF50+)
|
|
* This is very useful to enable when the browser is sandboxed (e.g. via AppArmor)
|
|
* in such a way that it is forbidden to run external applications.
|
|
* [SETUP] This may interfere with some users' workflow or methods
|
|
* [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1281959 ***/
|
|
user_pref("browser.download.forbid_open_with", true);
|
|
/* 2663: disable MathML (Mathematical Markup Language) (FF51+)
|
|
* [TEST] http://browserspy.dk/mathml.php
|
|
* [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1173199 ***/
|
|
user_pref("mathml.disabled", true);
|
|
/* 2664: disable DeviceStorage API
|
|
* [1] https://wiki.mozilla.org/WebAPI/DeviceStorageAPI ***/
|
|
user_pref("device.storage.enabled", false);
|
|
/* 2665: sanitize webchannel whitelist ***/
|
|
user_pref("webchannel.allowObject.urlWhitelist", "");
|
|
/* 2666: disable HTTP Alternative Services
|
|
* [1] http://www.ghacks.net/2015/08/18/a-comprehensive-list-of-firefox-privacy-and-security-settings/#comment-3970881 ***/
|
|
user_pref("network.http.altsvc.enabled", false);
|
|
user_pref("network.http.altsvc.oe", false);
|
|
/* 2667: disable various developer tools in browser context
|
|
* [SETTING] Devtools>Advanced Settings>Enable browser chrome and add-on debugging toolboxes
|
|
* [1] http://github.com/pyllyukko/user.js/issues/179#issuecomment-246468676 ***/
|
|
user_pref("devtools.chrome.enabled", false);
|
|
/* 2668: lock down allowed extension directories
|
|
* [WARNING] this will break add-ons that do not use the default XPI directories
|
|
* [1] https://mike.kaply.com/2012/02/21/understanding-add-on-scopes/
|
|
* [2] archived: http://archive.is/DYjAM ***/
|
|
user_pref("extensions.enabledScopes", 1); // (hidden pref)
|
|
user_pref("extensions.autoDisableScopes", 15);
|
|
/* 2669: strip paths when sending URLs to PAC scripts (FF51+)
|
|
* CVE-2017-5384: Information disclosure via Proxy Auto-Config (PAC)
|
|
* [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1255474 ***/
|
|
user_pref("network.proxy.autoconfig_url.include_path", false);
|
|
/* 2670: close bypassing of CSP via image mime types (FF51+)
|
|
* [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1288361 ***/
|
|
user_pref("security.block_script_with_wrong_mime", true);
|
|
/* 2671: disable in-content SVG (Scalable Vector Graphics) (FF53+)
|
|
* [WARNING] SVG is fairly common (~15% of the top 10K sites), so will cause some breakage
|
|
* including youtube player controls. Best left for "hardened" or specific profiles.
|
|
* [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1216893 ***/
|
|
// user_pref("svg.disabled", true);
|
|
/* 2672: force Punycode for Internationalized Domain Names to eliminate possible spoofing security risk
|
|
* Firefox has *some* protections to mitigate the risk, but it is better to be safe
|
|
* than sorry. The downside: it will also display legitimate IDN's punycoded, which
|
|
* might be undesirable for users from countries with non-latin alphabets
|
|
* [1] http://kb.mozillazine.org/Network.IDN_show_punycode
|
|
* [2] https://wiki.mozilla.org/IDN_Display_Algorithm
|
|
* [3] https://en.wikipedia.org/wiki/IDN_homograph_attack
|
|
* [4] CVE-2017-5383: https://www.mozilla.org/en-US/security/advisories/mfsa2017-02/ ***/
|
|
user_pref("network.IDN_show_punycode", true);
|
|
/* 2673: enforce CSP (Content Security Policy) (default is true)
|
|
* [1] https://developer.mozilla.org/en-US/docs/Web/HTTP/CSP ***/
|
|
user_pref("security.csp.enable", true);
|
|
/* 2674: enable CSP 1.1 experimental hash-source directive (FF29+)
|
|
* [1] https://bugzilla.mozilla.org/show_bug.cgi?id=855326
|
|
* [2] https://bugzilla.mozilla.org/show_bug.cgi?id=883975 ***/
|
|
user_pref("security.csp.experimentalEnabled", true);
|
|
|
|
/*** 2697: USER AGENT (UA) SPOOFING
|
|
Spoofing your UA to *LOWER* entropy *does* *not* *work*. It may even cause site breakage
|
|
depending on your values. Even if you spoof, like TBB (Tor Browser Bundle) does, as the
|
|
latest ESR, it still *does* *not* *work*. There are two main reasons for this.
|
|
1. Many of the components that make up your UA can be derived by other means. And when
|
|
those values differ, you provide more bits and raise entropy. Examples of leaks include
|
|
navigator objects, resource://URIs, <isindex> locale, feature detection and more.
|
|
2. You are not in a controlled set of significant numbers, where the values are enforced
|
|
by default. It works for TBB because for TBB, the spoofed values ARE their default.
|
|
* We do not recommend UA spoofing yourself, leave it to privacy.resistFingerprinting (see 2699)
|
|
* Values below are for example only based on the current ESR/TBB at the time of writing
|
|
***/
|
|
/* 2697a: navigator.userAgent leaks in JS
|
|
* [NOTE] setting this will break any UA spoofing add-on whitelisting ***/
|
|
// user_pref("general.useragent.override", "Mozilla/5.0 (Windows NT 6.1; rv:45.0) Gecko/20100101 Firefox/45.0"); // (hidden pref)
|
|
/* 2697b: navigator.buildID (see gecko.buildID in about:config) reveals build time
|
|
* down to the second which defeats user agent spoofing and can compromise OS etc
|
|
* [1] https://bugzilla.mozilla.org/show_bug.cgi?id=583181 ***/
|
|
// user_pref("general.buildID.override", "20100101"); // (hidden pref)
|
|
/* 2697c: navigator.appName ***/
|
|
//user_pref("general.appname.override", "Netscape"); // (hidden pref)
|
|
/* 2697d: navigator.appVersion ***/
|
|
// user_pref("general.appversion.override", "5.0 (Windows)"); // (hidden pref)
|
|
/* 2697e: navigator.platform leaks in JS ***/
|
|
// user_pref("general.platform.override", "Win32"); // (hidden pref)
|
|
/* 2697f: navigator.oscpu leaks in JS ***/
|
|
// user_pref("general.oscpu.override", "Windows NT 6.1"); // (hidden pref)
|
|
/* 2697g: also see 0204 for general.useragent.locale ***/
|
|
|
|
/*** 2698: FIRST PARTY ISOLATION (FPI) ***/
|
|
/* 2698a: enable first party isolation pref and OriginAttribute (FF51+)
|
|
* [WARNING] breaks lots of cross-domain logins and site functionality until perfected
|
|
* [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1260931 ***/
|
|
/* 2698b: isolate favicons (FF52+)
|
|
* [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1277803 ***/
|
|
/* 2698c: isolate OCSP cache (FF52+)
|
|
* [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1264562 ***/
|
|
/* 2698d: isolate Shared Workers (FF52+)
|
|
* [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1268726 ***/
|
|
/* 2698e: isolate SSL session cache (FF52+)
|
|
* [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1316283 ***/
|
|
/* 2698f: isolate media cache (FF53+)
|
|
* [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1317927 ***/
|
|
/* 2698g: isolate HSTS and HPKP (FF54+)
|
|
* [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1323644 ***/
|
|
/* 2698h: isolate HTTP Alternative Services (FF54+)
|
|
* [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1334690 ***/
|
|
/* 2698i: isolate SPDY/HTTP2 (FF55+)
|
|
* [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1334693 ***/
|
|
/* 2698j: isolate DNS cache (FF55+)
|
|
* [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1337893 ***/
|
|
// user_pref("privacy.firstparty.isolate", true);
|
|
|
|
/*** 2699: TOR UPLIFT: privacy.resistFingerprinting
|
|
This preference will be used as a generic switch for a wide range of items.
|
|
This section will attempt to list all the ramifications and Mozilla tickets ***/
|
|
/* 2699a: limit window.screen & CSS media queries providing large amounts of identifiable info.
|
|
* POC: http://ip-check.info/?lang=en (screen, usable screen, and browser window will match)
|
|
* [NOTE] does not cover everything yet - https://bugzilla.mozilla.org/show_bug.cgi?id=1216800
|
|
* [NOTE] this will probably make your values pretty unique until you resize or snap the
|
|
* inner window width + height into standard/common resolutions (mine is at 1366x768)
|
|
* To set a size, open a XUL (chrome) page (such as about:config) which is at 100% zoom, hit
|
|
* Shift+F4 to open the scratchpad, type window.resizeTo(1366,768), hit Ctrl+R to run. Test
|
|
* your window size, do some math, resize to allow for all the non inner window elements
|
|
* [TEST] http://browserspy.dk/screen.php
|
|
* [1] https://bugzilla.mozilla.org/show_bug.cgi?id=418986 ***/
|
|
/* 2699b: spoof screen orientation
|
|
* [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1281949 ***/
|
|
/* 2699c: hide the contents of navigator.plugins and navigator.mimeTypes (FF50+)
|
|
* [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1281963 ***/
|
|
user_pref("privacy.resistFingerprinting", true); // (hidden pref)
|
|
|
|
/*** 2700: COOKIES & DOM STORAGE ***/
|
|
user_pref("ghacks_user.js.parrot", "2700 syntax error: the parrot's joined the bleedin' choir invisible!");
|
|
/* 2701: disable cookies on all sites [SETUP]
|
|
* You can set exceptions under site permissions or use an extension (eg Cookie Controller)
|
|
* 0=allow all 1=allow same host 2=disallow all 3=allow 3rd party if it already set a cookie
|
|
* [SETTING] Options>Privacy>History>Custom Settings>Accept cookies from sites ***/
|
|
user_pref("network.cookie.cookieBehavior", 2);
|
|
/* 2702: ensure that third-party cookies (if enabled, see above pref) are session-only
|
|
* [1] https://feeding.cloud.geek.nz/posts/tweaking-cookies-for-privacy-in-firefox/
|
|
* [2] http://kb.mozillazine.org/Network.cookie.thirdparty.sessionOnly ***/
|
|
user_pref("network.cookie.thirdparty.sessionOnly", true);
|
|
/* 2703: set cookie lifetime policy
|
|
* 0=until they expire (default), 2=until you close Firefox, 3=for n days (see next pref)
|
|
* [SETTING] Options>Privacy>History>Custom Settings>Accept cookies from sites>Keep until ***/
|
|
// user_pref("network.cookie.lifetimePolicy", 0);
|
|
/* 2704: set cookie lifetime in days (see above pref) - default is 90 days ***/
|
|
// user_pref("network.cookie.lifetime.days", 90);
|
|
/* 2705: disable dom storage
|
|
* [WARNING] this will break a LOT of sites' functionality.
|
|
* You are better off using an extension for more granular control ***/
|
|
// user_pref("dom.storage.enabled", false);
|
|
/* 2706: disable Storage API (FF51+)
|
|
* The API gives sites the ability to find out how much space they can use, how much
|
|
* they are already using, and even control whether or not they need to be alerted
|
|
* before the user agent disposes of site data in order to make room for other things.
|
|
* [1] https://developer.mozilla.org/en-US/docs/Web/API/StorageManager
|
|
* [2] https://developer.mozilla.org/en-US/docs/Web/API/Storage_API ***/
|
|
user_pref("dom.storageManager.enabled", false);
|
|
/* 2707: clear localStorage and UUID when a WebExtension is uninstalled
|
|
* [NOTE] both preferences must be the same
|
|
* [1] https://developer.mozilla.org/en-US/Add-ons/WebExtensions/API/storage/local
|
|
* [2] https://bugzilla.mozilla.org/show_bug.cgi?id=1213990 ***/
|
|
user_pref("extensions.webextensions.keepStorageOnUninstall", false);
|
|
user_pref("extensions.webextensions.keepUuidOnUninstall", false);
|
|
/* 2708: prevent HTTP sites from setting cookies with the "secure" directive (default: true) (FF52+)
|
|
* [1] https://developer.mozilla.org/en-US/Firefox/Releases/52#HTTP ***/
|
|
user_pref("network.cookie.leave-secure-alone", true);
|
|
|
|
/*** 2800: SHUTDOWN [SETUP]
|
|
You should set the values to what suits you best. Be aware that the settings below clear
|
|
browsing, download and form history, but not cookies (we expect you to use an extension).
|
|
[NOTE] In both 2803 + 2804, the 'download' and 'history' prefs are combined in the
|
|
firefox interface as "Browsing & Download History" and their values will be synced
|
|
***/
|
|
user_pref("ghacks_user.js.parrot", "2800 syntax error: the parrot's bleedin' demised!");
|
|
/* 2802: enable Firefox to clear history items on shutdown
|
|
* [SETTING] Options>Privacy>Clear history when Firefox closes ***/
|
|
user_pref("privacy.sanitize.sanitizeOnShutdown", true);
|
|
/* 2803: set what history items to clear on shutdown
|
|
* [SETTING] Options>Privacy>Clear history when Firefox closes>Settings
|
|
* [NOTE] If 'history' is true, downloads will also be cleared regardless of the value
|
|
* but if 'history' is false, downloads can still be cleared independently
|
|
* However, this may not always be the case. The interface combines and syncs these
|
|
* prefs when set from there, and the sanitize code may change at any time ***/
|
|
user_pref("privacy.clearOnShutdown.cache", true);
|
|
user_pref("privacy.clearOnShutdown.cookies", false);
|
|
user_pref("privacy.clearOnShutdown.downloads", true); // see note above
|
|
user_pref("privacy.clearOnShutdown.formdata", true); // Form & Search History
|
|
user_pref("privacy.clearOnShutdown.history", true); // Browsing & Download History
|
|
user_pref("privacy.clearOnShutdown.offlineApps", true); // Offline Website Data
|
|
user_pref("privacy.clearOnShutdown.sessions", true); // Active Logins
|
|
user_pref("privacy.clearOnShutdown.siteSettings", false); // Site Preferences
|
|
/* 2804: set what history items to clear with Ctrl-Shift-Del (to match above)
|
|
* This dialog can also be accessed from the menu History>Clear Recent History
|
|
* [NOTE] regardless of what you set privacy.cpd.downloads to, as soon as the dialog
|
|
* for "Clear Recent History" is opened, it is synced to the same as 'history' ***/
|
|
user_pref("privacy.cpd.cache", true);
|
|
user_pref("privacy.cpd.cookies", false);
|
|
// user_pref("privacy.cpd.downloads", true); // not used, see note above
|
|
user_pref("privacy.cpd.formdata", true); // Form & Search History
|
|
user_pref("privacy.cpd.history", true); // Browsing & Download History
|
|
user_pref("privacy.cpd.offlineApps", true); // Offline Website Data
|
|
user_pref("privacy.cpd.passwords", false); // this is not listed
|
|
user_pref("privacy.cpd.sessions", true); // Active Logins
|
|
user_pref("privacy.cpd.siteSettings", false); // Site Preferences
|
|
/* 2805: privacy.*.openWindows (FF34+)
|
|
* We don't know what they do because we don't care what they do ***/
|
|
user_pref("privacy.clearOnShutdown.openWindows", false);
|
|
user_pref("privacy.cpd.openWindows", false);
|
|
/* 2806: reset default 'Time range to clear' for 'Clear Recent History' (see 2804)
|
|
* Firefox remembers your last choice. This will reset the value when you start Firefox.
|
|
* 0=everything, 1=last hour, 2=last two hours, 3=last four hours
|
|
* 4=today, 5=last five minutes, 6=last twenty-four hours
|
|
* [NOTE] The values 5 + 6 are not listed in the dropdown, which will display a
|
|
* blank value if they are used, but they do work as advertised ***/
|
|
user_pref("privacy.sanitize.timeSpan", 0);
|
|
|
|
/*** 3000: PERSONAL SETTINGS [SETUP]
|
|
Settings that are handy to migrate and/or are not in the Options interface. Users
|
|
can put their own non-security/privacy/fingerprinting/tracking stuff here ***/
|
|
user_pref("ghacks_user.js.parrot", "3000 syntax error: this is an ex-parrot!");
|
|
/* 3001: disable annoying warnings ***/
|
|
user_pref("general.warnOnAboutConfig", false);
|
|
user_pref("browser.tabs.warnOnClose", false);
|
|
user_pref("browser.tabs.warnOnCloseOtherTabs", false);
|
|
user_pref("browser.tabs.warnOnOpen", false);
|
|
/* 3001a: disable warning when a domain requests full screen
|
|
* [1] https://developer.mozilla.org/en-US/docs/Web/Guide/API/DOM/Using_full_screen_mode ***/
|
|
// user_pref("full-screen-api.warning.delay", 0);
|
|
// user_pref("full-screen-api.warning.timeout", 0);
|
|
/* 3002: disable closing browser with last tab ***/
|
|
user_pref("browser.tabs.closeWindowWithLastTab", false);
|
|
/* 3004: disable backspace (0 = previous page, 1 = scroll up, 2 = do nothing) ***/
|
|
user_pref("browser.backspace_action", 2);
|
|
/* 3005: disable autocopy default (linux) ***/
|
|
// user_pref("clipboard.autocopy", false);
|
|
/* 3007: open new windows in a new tab instead
|
|
* 1=current window, 2=new window, 3=most recent window
|
|
* [SETTING] Options>General>Tabs>Open new windows in a new tab instead ***/
|
|
user_pref("browser.link.open_newwindow", 3);
|
|
/* 3009: turn on APZ (Async Pan/Zoom) - requires e10s
|
|
* [1] http://www.ghacks.net/2015/07/28/scrolling-in-firefox-to-get-a-lot-better-thanks-to-apz/ ***/
|
|
// user_pref("layers.async-pan-zoom.enabled", true);
|
|
/* 3010: enable ctrl-tab previews ***/
|
|
user_pref("browser.ctrlTab.previews", true);
|
|
/* 3011: don't open "page/selection source" in a tab. The window used instead is cleaner
|
|
* and easier to use and move around (eg developers/multi-screen). ***/
|
|
user_pref("view_source.tab", false);
|
|
/* 3012: spellchecking: 0=none, 1-multi-line controls, 2=multi-line & single-line controls ***/
|
|
user_pref("layout.spellcheckDefault", 1);
|
|
/* 3013: disable automatic "Work Offline" status
|
|
* [1] https://bugzilla.mozilla.org/show_bug.cgi?id=620472
|
|
* [2] https://developer.mozilla.org/en-US/docs/Online_and_offline_events ***/
|
|
user_pref("network.manage-offline-status", false);
|
|
/* 3015: disable tab animation, speed things up a little ***/
|
|
user_pref("browser.tabs.animate", false);
|
|
/* 3016: disable fullscreeen animation. Test using F11.
|
|
* Animation is smother but is annoyingly slow, while no animation can be startling ***/
|
|
user_pref("browser.fullscreen.animate", false);
|
|
/* 3017: submenu in milliseconds. 0=instant while a small number allows
|
|
* a mouse pass over menu items without any submenus alarmingly shooting out ***/
|
|
user_pref("ui.submenuDelay", 150); // (hidden pref)
|
|
/* 3018: maximum number of daily bookmark backups to keep (default is 15) ***/
|
|
user_pref("browser.bookmarks.max_backups", 2);
|
|
/* 3020: FYI: urlbar click behaviour (with defaults) ***/
|
|
user_pref("browser.urlbar.clickSelectsAll", true);
|
|
user_pref("browser.urlbar.doubleClickSelectsAll", false);
|
|
/* 3021a: FYI: tab behaviours (with defaults)
|
|
* open links in a new tab immediately to the right of parent tab, not far right ***/
|
|
user_pref("browser.tabs.insertRelatedAfterCurrent", true);
|
|
/* 3021b: switch to the parent tab (if it has one) on close, rather than
|
|
* to the adjacent right tab if it exists or to the adjacent left tab if it doesn't.
|
|
* [NOTE] requires browser.link.open_newwindow set to 3 (see pref 3007) ***/
|
|
user_pref("browser.tabs.selectOwnerOnClose", true);
|
|
/* 3021c: stay on the parent tab when opening links in a new tab
|
|
* [SETTING] Options>General>Tabs>When I open a link in a new tab, switch to it immediately ***/
|
|
user_pref("browser.tabs.loadInBackground", true);
|
|
/* 3021d: set behavior of pages normally meant to open in a new window (such as target="_blank"
|
|
* or from an external program), but that have instead been loaded in a new tab.
|
|
* true: load the new tab in the background, leaving focus on the current tab
|
|
* false: load the new tab in the foreground, taking the focus from the current tab. ***/
|
|
user_pref("browser.tabs.loadDivertedInBackground", false);
|
|
/* 3022: hide recently bookmarked items (you still have the original bookmarks) (FF49+) ***/
|
|
user_pref("browser.bookmarks.showRecentlyBookmarked", false);
|
|
/* 3023: disable automigrate (FF49+)
|
|
* default is false in FF49+ and true in FF53+
|
|
* need more info, but lock down for now ***/
|
|
user_pref("browser.migrate.automigrate.enabled", false);
|
|
/* 3024: enable "Find As You Type"
|
|
* [1] http://kb.mozillazine.org/Accessibility.typeaheadfind ***/
|
|
// user_pref("accessibility.typeaheadfind", true);
|
|
/* 3025: enable/disable various media types ***/
|
|
// user_pref("media.mp4.enabled", false);
|
|
// user_pref("media.flac.enabled", false); // (FF51+)
|
|
// user_pref("media.ogg.enabled", false);
|
|
// user_pref("media.ogg.flac.enabled", false); // (FF51+)
|
|
// user_pref("media.opus.enabled", false);
|
|
// user_pref("media.raw.enabled", false);
|
|
// user_pref("media.wave.enabled", false);
|
|
// user_pref("media.webm.enabled", false);
|
|
// user_pref("media.wmf.enabled", false); // https://www.youtube.com/html5 - for the two H.264 entries
|
|
/* 3026: disable "Reader View" ***/
|
|
// user_pref("reader.parse-on-load.enabled", false);
|
|
|
|
/* END: internal custom pref to test for syntax errors ***/
|
|
user_pref("ghacks_user.js.parrot", "No no he's not dead, he's, he's restin'! Remarkable bird, the Norwegian Blue");
|
|
|
|
/*** 9997: DEPRECATED / REMOVED
|
|
Personally confirmed by resetting as well as via documentation and DXR searches.
|
|
[NOTE] numbers may get re-used ***/
|
|
/* 2607: (23+) disable page thumbnails, it was around v23, not 100% sure when
|
|
* this pref was replaced with browser.pagethumbnails.capturing_disabled ***/
|
|
// user_pref("pageThumbs.enabled", false);
|
|
/* 2408: (31+) disable network API - fingerprinting vector ***/
|
|
// user_pref("dom.network.enabled", false);
|
|
/* 2620: (35+) disable WebSockets
|
|
* [1] https://developer.mozilla.org/en-US/Firefox/Releases/35 ***/
|
|
// user_pref("network.websocket.enabled", false);
|
|
/* 2023: (37+) disable camera autofocus callback (was in 36, not in 37)
|
|
* Not part of any specification, the API will be superceded by the WebRTC Capture
|
|
* and Stream API ( http://w3c.github.io/mediacapture-main/getusermedia.html )
|
|
* [1] https://developer.mozilla.org/en-US/docs/Mozilla/Firefox_OS/API/CameraControl/ ***/
|
|
// user_pref("camera.control.autofocus_moving_callback.enabled", false);
|
|
/* 1804: (41+) disable plugin enumeration ***/
|
|
// user_pref("plugins.enumerable_names", "");
|
|
/* 0420: (42+) disable tracking protection
|
|
* this particular pref was never in stable
|
|
* labelled v42+ because that's when tracking protection landed ***/
|
|
// user_pref("browser.polaris.enabled", false);
|
|
/* 2803: (42+) what to clear on shutdown
|
|
* [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1102184#c23 ***/
|
|
// user_pref("privacy.clearOnShutdown.passwords", false);
|
|
/* 0411: (43+) disable safebrowsing urls & download ***/
|
|
// user_pref("browser.safebrowsing.gethashURL", "");
|
|
// user_pref("browser.safebrowsing.malware.reportURL", "");
|
|
// user_pref("browser.safebrowsing.provider.google.appRepURL", "");
|
|
// user_pref("browser.safebrowsing.reportErrorURL", "");
|
|
// user_pref("browser.safebrowsing.reportGenericURL", "");
|
|
// user_pref("browser.safebrowsing.reportMalwareErrorURL", "");
|
|
// user_pref("browser.safebrowsing.reportMalwareURL", "");
|
|
// user_pref("browser.safebrowsing.reportURL", "");
|
|
// user_pref("browser.safebrowsing.updateURL", "");
|
|
/* 0420: (43+) disable tracking protection. FF43+ URLs are now part of safebrowsing
|
|
* [1] https://wiki.mozilla.org/Security/Tracking_protection (look under Prefs)
|
|
* [NOTE] getupdateURL = WRONG / never existed. updateURL = CORRECT and has been added FYI ***/
|
|
// user_pref("browser.trackingprotection.gethashURL", "");
|
|
// user_pref("browser.trackingprotection.getupdateURL", "");
|
|
// user_pref("browser.trackingprotection.updateURL", "");
|
|
/* 1803: (43+) remove plugin finder service
|
|
* [1] http://kb.mozillazine.org/Pfs.datasource.url ***/
|
|
// user_pref("pfs.datasource.url", "");
|
|
/* 2403: (43+) disable scripts changing images
|
|
* [TEST] http://www.w3schools.com/jsref/tryit.asp?filename=tryjsref_img_src2
|
|
* [WARNING] will break some sites such as Google Maps and a lot of web apps ***/
|
|
// user_pref("dom.disable_image_src_set", true);
|
|
/* 2615: (43+) disable http2 for now as well ***/
|
|
// user_pref("network.http.spdy.enabled.http2draft", false);
|
|
/* 3001a: (43+) disable warning when a domain requests full screen
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* replaced by setting full-screen-api.warning.timeout to zero ***/
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// user_pref("full-screen-api.approval-required", false);
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/* 3003: (43+) disable new search panel UI [Classic Theme Restorer can restore the old search] ***/
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// user_pref("browser.search.showOneOffButtons", false);
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/* 1201: (44+) block rc4 whitelist
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* [1] https://developer.mozilla.org/en-US/Firefox/Releases/44#Security ***/
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// user_pref("security.tls.insecure_fallback_hosts.use_static_list", false);
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/* 2417: (44+) disable SharedWorkers, which allow the exchange of data between iFrames that
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* are open in different tabs, even if the sites do not belong to the same domain.
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* [1] https://www.torproject.org/projects/torbrowser/design/#identifier-linkability (no. 8)
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* [2] https://bugs.torproject.org/15562
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* is used in FF 45 and 46 code once, to set it for a test ***/
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// user_pref("dom.workers.sharedWorkers.enabled", false);
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/* 1005: (45+) disable deferred level of storing extra session data 0=all 1=http-only 2=none ***/
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// user_pref("browser.sessionstore.privacy_level_deferred", 2);
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/* 0334b: (46+) disable FHR (Firefox Health Report) v2 data being sent to Mozilla servers ***/
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// user_pref("datareporting.policy.dataSubmissionEnabled.v2", false);
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/* 0373: (46+) disable "Pocket". FF46 replaced these with extensions.pocket.* ***/
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// user_pref("browser.pocket.enabled", false);
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// user_pref("browser.pocket.api", "");
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// user_pref("browser.pocket.site", "");
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// user_pref("browser.pocket.oAuthConsumerKey", "");
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/* 0410e: (46+) safebrowsing ***/
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// user_pref("browser.safebrowsing.appRepURL", ""); // Google application reputation check
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/* 0333b: (47+) disable about:healthreport page UNIFIED ***/
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// user_pref("datareporting.healthreport.about.reportUrlUnified", "data:text/plain,");
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/* 0807: (47+) disable history manipulation
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* [1] https://developer.mozilla.org/en-US/docs/Web/Guide/API/DOM/Manipulating_the_browser_history
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* [WARNING] if set to false it breaks some sites (youtube) ability to correctly show the
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* url in location bar and for the forward/back tab history to work ***/
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// user_pref("browser.history.allowPopState", false);
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// user_pref("browser.history.allowPushState", false);
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// user_pref("browser.history.allowReplaceState", false);
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/* (48+) disable dom.mozTCPSocket.enabled (raw TCP socket support)
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|
* [1] https://trac.torproject.org/projects/tor/ticket/18863
|
|
* [2] https://www.mozilla.org/en-US/security/advisories/mfsa2015-97/
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* [3] https://developer.mozilla.org/docs/Mozilla/B2G_OS/API/TCPSocket ***/
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// user_pref("dom.mozTCPSocket.enabled", false);
|
|
/* 0806: (48+) disable 'unified complete': 'Search with [default search engine]'
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|
* this feature has been added back in Classic Theme Restorer
|
|
* [1] http://techdows.com/2016/05/firefox-unified-complete-aboutconfig-preference-removed.html ***/
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// user_pref("browser.urlbar.unifiedcomplete", false);
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/* 3006: (48+) disable enforced add-on signing
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* [NOTE] the preference is still in FF48+, but it's legacy code and does not work in stable ***/
|
|
// user_pref("xpinstall.signatures.required", false);
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|
/* 0372: (49+) disable "Hello" (TokBox/Telefonica WebRTC voice & video call PUP) WebRTC (IP leak)
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|
* [1] https://www.mozilla.org/en-US/privacy/firefox-hello/
|
|
* [2] https://security.stackexchange.com/questions/94284/how-secure-is-firefox-hello
|
|
* [3] https://support.mozilla.org/en-US/kb/hello-status ***/
|
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// user_pref("loop.enabled", false);
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// user_pref("loop.server", "");
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// user_pref("loop.feedback.formURL", "");
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|
// user_pref("loop.feedback.manualFormURL", "");
|
|
// user_pref("loop.facebook.appId", "");
|
|
// user_pref("loop.facebook.enabled", false);
|
|
// user_pref("loop.facebook.fallbackUrl", "");
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|
// user_pref("loop.facebook.shareUrl", "");
|
|
// user_pref("loop.logDomains", false);
|
|
/* 2202: (49+) ONE of the new window UI prefs ***/
|
|
// user_pref("dom.disable_window_open_feature.scrollbars", true);
|
|
/* 2431: (49+) disable ONE of the push notification prefs ***/
|
|
// user_pref("dom.push.udp.wakeupEnabled", false);
|
|
/* 0101: (50+) disable ONE of the "slow startup" options ***/
|
|
// user_pref("browser.usedOnWindows10.introURL", "");
|
|
/* 0308: (50+) disable update plugin notifications
|
|
* if using Flash/Java/Silverlight, it is best to turn on their own auto-update mechanisms.
|
|
* See 1804 below: Mozilla only checks a few plugins and will soon do away with NPAPI ***/
|
|
// user_pref("plugins.update.notifyUser", false);
|
|
/* 0410a: (50+) "Block dangerous and deceptive content" pref name change ***/
|
|
// user_pref("browser.safebrowsing.enabled", false); // FF49 and earlier
|
|
/* 1202: (50+) disable rc4 ciphers
|
|
* [1] https://www.fxsitecompat.com/en-CA/docs/2016/rc4-support-has-been-completely-removed/
|
|
* [2] https://trac.torproject.org/projects/tor/ticket/17369 ***/
|
|
// user_pref("security.ssl3.ecdhe_ecdsa_rc4_128_sha", false);
|
|
// user_pref("security.ssl3.ecdhe_rsa_rc4_128_sha", false);
|
|
// user_pref("security.ssl3.rsa_rc4_128_md5", false);
|
|
// user_pref("security.ssl3.rsa_rc4_128_sha", false);
|
|
/* 1809: (50+) remove Mozilla's plugin update URL ***/
|
|
// user_pref("plugins.update.url", "");
|
|
/* 1851: (51+) delay play of videos until they're visible
|
|
* [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1180563 ***/
|
|
// user_pref("media.block-play-until-visible", true);
|
|
/* 2504: (51+) disable virtual reality devices ***/
|
|
// user_pref("dom.vr.oculus050.enabled", false);
|
|
/* 2614: (51+) disable SPDY ***/
|
|
// user_pref("network.http.spdy.enabled.v3-1", false);
|
|
/* 1602: (?) this DNT .value pref (still in code) was deprecated some time ago
|
|
* [1] http://kb.mozillazine.org/Privacy.donottrackheader.value (pref required since FF21+) ***/
|
|
// user_pref("privacy.donottrackheader.value", 1); // (hidden pref)
|
|
/* 1601: (52+) disable referer from an SSL Website
|
|
* removed: https://bugzilla.mozilla.org/show_bug.cgi?id=1308725 ***/
|
|
// user_pref("network.http.sendSecureXSiteReferrer", false);
|
|
/* 1850: (52+) disable the Adobe EME "Primetime CDM" (Content Decryption Module)
|
|
* [1] https://trac.torproject.org/projects/tor/ticket/16285 ***/
|
|
// user_pref("media.gmp-eme-adobe.enabled", false);
|
|
// user_pref("media.gmp-eme-adobe.visible", false);
|
|
// user_pref("media.gmp-eme-adobe.autoupdate", false);
|
|
/* 2405: (52+) https://wiki.mozilla.org/WebAPI/Security/WebTelephony ***/
|
|
// user_pref("dom.telephony.enabled", false);
|
|
/* 2502: (52+) disable Battery Status API. Initially a Linux issue (high precision readout) that was fixed.
|
|
* However, it is still another metric for fingerprinting, used to raise entropy.
|
|
* eg: do you have a battery or not, current charging status, charge level, times remaining etc
|
|
* [1] http://techcrunch.com/2015/08/04/battery-attributes-can-be-used-to-track-web-users/
|
|
* [2] https://bugzilla.mozilla.org/show_bug.cgi?id=1124127
|
|
* [3] https://www.w3.org/TR/battery-status/
|
|
* [4] https://www.theguardian.com/technology/2016/aug/02/battery-status-indicators-tracking-online
|
|
* [NOTE] From FF52+ Battery Status API is only available in chrome/privileged code.
|
|
* [5] https://bugzilla.mozilla.org/show_bug.cgi?id=1313580 ***/
|
|
// user_pref("dom.battery.enabled", false);
|