michel_ouba/FF_arkenfox_user.js
michel_ouba/FF_arkenfox_user.js
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@ -1,8 +1,9 @@
/******
* name: arkenfox user.js
* date: 17 September 2023
* version: 117
* url: https://github.com/arkenfox/user.js
* date: 18 October 2023
* version: 118
* urls: https://github.com/arkenfox/user.js [repo]
* : https://arkenfox.github.io/gui/ [interactive]
* license: MIT: https://github.com/arkenfox/user.js/blob/master/LICENSE.txt
* README:
@ -26,15 +27,15 @@
* RELEASES: https://github.com/arkenfox/user.js/releases
* It is best to use the arkenfox release that is optimized for and matches your Firefox version
* EVERYONE: each release
- run prefsCleaner to reset prefs made inactive, including deprecated (9999s)
ESR102
- If you are not using arkenfox v102-1... (not a definitive list)
- 2815: clearOnShutdown cookies + offlineApps should be false
- 9999: switch the appropriate deprecated section(s) back on
* ESR115
- use https://github.com/arkenfox/user.js/releases/tag/115.1
* Use the arkenfox release that matches your Firefox version
- DON'T wait for arkenfox to update Firefox, nothing major changes these days
* Each release
- run prefsCleaner to reset prefs made inactive, including deprecated (9999)
* ESR
- It is recommended to not use the updater, or you will get a later version which may cause issues.
So you should manually append your overrides (and keep a copy), and manually update when you
change ESR releases (arkenfox is already past that release)
- If you decide to keep updating, then the onus is on - also see section 9999
* INDEX:
@ -48,7 +49,6 @@
0900: PASSWORDS
1000: DISK AVOIDANCE
1200: HTTPS (SSL/TLS / OCSP / CERTS / HPKP)
1400: FONTS
1600: REFERERS
1700: CONTAINERS
2000: PLUGINS / MEDIA / WEBRTC
@ -56,14 +56,14 @@
2600: MISCELLANEOUS
2700: ETP (ENHANCED TRACKING PROTECTION)
2800: SHUTDOWN & SANITIZING
4500: RFP (RESIST FINGERPRINTING)
4500: RFP (resistFingerprinting)
5000: OPTIONAL OPSEC
5500: OPTIONAL HARDENING
6000: DON'T TOUCH
7000: DON'T BOTHER
8000: DON'T BOTHER: FINGERPRINTING
9000: NON-PROJECT RELATED
9999: DEPRECATED / REMOVED / LEGACY / RENAMED
9999: DEPRECATED / RENAMED
******/
@ -132,6 +132,9 @@ user_pref("extensions.htmlaboutaddons.recommendations.enabled", false);
* [SETTING] Privacy & Security>Firefox Data Collection & Use>Allow Firefox to make personalized extension recommendations
* [1] https://support.mozilla.org/kb/personalized-extension-recommendations ***/
user_pref("browser.discovery.enabled", false);
/* 0323: disable shopping experience [FF116+]
* [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1840156#c0 ***/
user_pref("browser.shopping.experience2023.enabled", false); // [DEFAULT: false]
/** TELEMETRY ***/
/* 0330: disable new data submission [FF41+]
@ -269,11 +272,11 @@ user_pref("network.proxy.socks_remote_dns", true);
user_pref("network.file.disable_unc_paths", true); // [HIDDEN PREF]
/* 0704: disable GIO as a potential proxy bypass vector
* Gvfs/GIO has a set of supported protocols like obex, network, archive, computer,
* dav, cdda, gphoto2, trash, etc. By default only sftp is accepted (FF87+)
* dav, cdda, gphoto2, trash, etc. From FF87-117, by default only sftp was accepted
* [1] https://bugzilla.mozilla.org/1433507
* [2] https://en.wikipedia.org/wiki/GVfs
* [3] https://en.wikipedia.org/wiki/GIO_(software) ***/
user_pref("network.gio.supported-protocols", ""); // [HIDDEN PREF]
user_pref("network.gio.supported-protocols", ""); // [HIDDEN PREF] [DEFAULT: "" FF118+]
/* 0705: disable proxy direct failover for system requests [FF91+]
* [WARNING] Default true is a security feature against malicious extensions [1]
* [SETUP-CHROME] If you use a proxy and you trust your extensions
@ -305,36 +308,30 @@ user_pref("network.dns.skipTRR-when-parental-control-enabled", false);
/*** [SECTION 0800]: LOCATION BAR / SEARCH BAR / SUGGESTIONS / HISTORY / FORMS ***/
user_pref("_user.js.parrot", "0800 syntax error: the parrot's ceased to be!");
/* 0802: disable location bar domain guessing
* domain guessing intercepts DNS "hostname not found errors" and resends a
* request (e.g. by adding www or .com). This is inconsistent use (e.g. 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 (e.g. query strings: e.g. Princeton attack),
* and is a security risk (e.g. common typos & malicious sites set up to exploit this) ***/
user_pref("browser.fixup.alternate.enabled", false); // [DEFAULT: false FF104+]
/* 0804: disable live search suggestions
/* 0801: disable location bar making speculative connections [FF56+]
* [1] https://bugzilla.mozilla.org/1348275 ***/
user_pref("browser.urlbar.speculativeConnect.enabled", false);
/* 0802: disable location bar contextual suggestions [FF92+]
* [SETTING] Privacy & Security>Address Bar>Suggestions from...
* [1] https://blog.mozilla.org/data/2021/09/15/data-and-firefox-suggest/ ***/
user_pref("browser.urlbar.suggest.quicksuggest.nonsponsored", false); // [FF95+]
user_pref("browser.urlbar.suggest.quicksuggest.sponsored", false);
/* 0803: disable live search suggestions
* [NOTE] Both must be true for the location bar to work
* [SETUP-CHROME] Override these if you trust and use a privacy respecting search engine
* [SETTING] Search>Provide search suggestions | Show search suggestions in address bar results ***/
user_pref("browser.search.suggest.enabled", false);
user_pref("browser.urlbar.suggest.searches", false);
/* 0805: disable location bar making speculative connections [FF56+]
* [1] https://bugzilla.mozilla.org/1348275 ***/
user_pref("browser.urlbar.speculativeConnect.enabled", false);
/* 0806: disable location bar leaking single words to a DNS provider **after searching** [FF78+]
* 0=never resolve, 1=use heuristics, 2=always resolve
* [1] https://bugzilla.mozilla.org/1642623 ***/
user_pref("browser.urlbar.dnsResolveSingleWordsAfterSearch", 0); // [DEFAULT: 0 FF104+]
/* 0807: disable location bar contextual suggestions [FF92+]
* [SETTING] Privacy & Security>Address Bar>Suggestions from...
* [1] https://blog.mozilla.org/data/2021/09/15/data-and-firefox-suggest/ ***/
user_pref("browser.urlbar.suggest.quicksuggest.nonsponsored", false); // [FF95+]
user_pref("browser.urlbar.suggest.quicksuggest.sponsored", false);
/* 0808: disable tab-to-search [FF85+]
* Alternatively, you can exclude on a per-engine basis by unchecking them in Options>Search
* [SETTING] Privacy & Security>Address Bar>When using the address bar, suggest>Search engines ***/
// user_pref("browser.urlbar.suggest.engines", false);
/* 0805: disable urlbar trending search suggestions [FF118+]
* [SETTING] Search>Search Suggestions>Show trending search suggestions (FF119) ***/
user_pref("browser.urlbar.trending.featureGate", false);
/* 0806: disable urlbar suggestions ***/
user_pref("browser.urlbar.addons.featureGate", false); // [FF115+]
user_pref("browser.urlbar.mdn.featureGate", false); // [FF117+] [HIDDEN PREF]
user_pref("browser.urlbar.pocket.featureGate", false); // [FF116+] [DEFAULT: false]
user_pref("browser.urlbar.weather.featureGate", false); // [FF108+] [DEFAULT: false]
/* 0807: disable urlbar clipboard suggestions [FF118+] ***/
// user_pref("browser.urlbar.clipboard.featureGate", false); // [DEFAULT: false]
/* 0810: disable search and form history
* [SETUP-WEB] Be aware that autocomplete form data can be read by third parties [1][2]
* [NOTE] We also clear formdata on exit (2811)
@ -342,6 +339,10 @@ user_pref("browser.urlbar.suggest.quicksuggest.sponsored", false);
* [1] https://blog.mindedsecurity.com/2011/10/autocompleteagain.html
* [2] https://bugzilla.mozilla.org/381681 ***/
user_pref("browser.formfill.enable", false);
/* 0815: disable tab-to-search [FF85+]
* Alternatively, you can exclude on a per-engine basis by unchecking them in Options>Search
* [SETTING] Privacy & Security>Address Bar>When using the address bar, suggest>Search engines ***/
// user_pref("browser.urlbar.suggest.engines", false);
/* 0820: disable coloring of visited links
* [SETUP-HARDEN] Bulk rapid history sniffing was mitigated in 2010 [1][2]. Slower and more expensive
* redraw timing attacks were largely mitigated in FF77+ [3]. Using RFP (4501) further hampers timing
@ -499,18 +500,6 @@ user_pref("security.ssl.treat_unsafe_negotiation_as_broken", true);
* [TEST] https://expired.badssl.com/ ***/
user_pref("browser.xul.error_pages.expert_bad_cert", true);
/*** [SECTION 1400]: FONTS ***/
user_pref("_user.js.parrot", "1400 syntax error: the parrot's bereft of life!");
/* 1402: limit font visibility (Windows, Mac, some Linux) [FF94+]
* Uses hardcoded lists with two parts: kBaseFonts + kLangPackFonts [1], bundled fonts are auto-allowed
* In normal windows: uses the first applicable: RFP over TP over Standard
* In Private Browsing windows: uses the most restrictive between normal and private
* 1=only base system fonts, 2=also fonts from optional language packs, 3=also user-installed fonts
* [1] https://searchfox.org/mozilla-central/search?path=StandardFonts*.inc ***/
// user_pref("layout.css.font-visibility.private", 1);
// user_pref("layout.css.font-visibility.standard", 1);
// user_pref("layout.css.font-visibility.trackingprotection", 1);
/*** [SECTION 1600]: REFERERS
full URI: https://example.com:8888/foo/bar.html?id=1234
scheme+host+port+path: https://example.com:8888/foo/bar.html
@ -558,11 +547,9 @@ user_pref("dom.disable_window_move_resize", true);
/*** [SECTION 2600]: MISCELLANEOUS ***/
user_pref("_user.js.parrot", "2600 syntax error: the parrot's run down the curtain!");
/* 2601: prevent accessibility services from accessing your browser [RESTART]
* [1] https://support.mozilla.org/kb/accessibility-services ***/
user_pref("accessibility.force_disabled", 1);
/* 2603: remove temp files opened with an external application
* [1] https://bugzilla.mozilla.org/302433 ***/
/* 2603: remove temp files opened from non-PB windows with an external application
* [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=302433,1738574 ***/
user_pref("browser.download.start_downloads_in_tmp_dir", true); // [FF102+]
user_pref("browser.helperApps.deleteTempFileOnExit", true);
/* 2606: disable UITour backend so there is no chance that a remote page can use it ***/
user_pref("browser.uitour.enabled", false);
@ -599,12 +586,6 @@ user_pref("network.IDN_show_punycode", true);
* [1] https://cve.mitre.org/cgi-bin/cvekey.cgi?keyword=pdf.js+firefox ***/
user_pref("pdfjs.disabled", false); // [DEFAULT: false]
user_pref("pdfjs.enableScripting", false); // [FF86+]
/* 2623: disable permissions delegation [FF73+]
* Currently applies to cross-origin geolocation, camera, mic and screen-sharing
* permissions, and fullscreen requests. Disabling delegation means any prompts
* for these will show/use their correct 3rd party origin
* [1] https://groups.google.com/forum/#!topic/mozilla.dev.platform/BdFOMAuCGW8/discussion ***/
user_pref("permissions.delegation.enabled", false);
/* 2624: disable middle click on new tab button opening URLs or searches using clipboard [FF115+] */
user_pref("browser.tabs.searchclipboardfor.middleclick", false); // [DEFAULT: false NON-LINUX]
@ -625,8 +606,7 @@ user_pref("browser.download.always_ask_before_handling_new_types", true);
/* 2660: lock down allowed extension directories
* [SETUP-CHROME] This will break extensions, language packs, themes and any other
* XPI files which are installed outside of profile and application directories
* [1] https://mike.kaply.com/2012/02/21/understanding-add-on-scopes/
* [1] https://archive.is/DYjAM (archived) ***/
* [1] https://archive.is/DYjAM ***/
user_pref("extensions.enabledScopes", 5); // [HIDDEN PREF]
user_pref("extensions.autoDisableScopes", 15); // [DEFAULT: 15]
/* 2661: disable bypassing 3rd party extension install prompts [FF82+]
@ -653,11 +633,6 @@ user_pref("browser.contentblocking.category", "strict");
* [2] https://hg.mozilla.org/mozilla-central/rev/e5483fd469ab#l4.12
* [3] https://developer.mozilla.org/en-US/docs/Web/Privacy/State_Partitioning#storage_access_heuristics ***/
// user_pref("privacy.antitracking.enableWebcompat", false);
/* 2710: enable state partitioning of service workers [FF96+] ***/
user_pref("privacy.partition.serviceWorkers", true); // [DEFAULT: true FF105+]
/* 2720: enable APS (Always Partitioning Storage) ***/
user_pref("privacy.partition.always_partition_third_party_non_cookie_storage", true); // [FF104+] [DEFAULT: true FF109+]
user_pref("privacy.partition.always_partition_third_party_non_cookie_storage.exempt_sessionstorage", false); // [FF105+] [DEFAULT: false FF109+]
/*** [SECTION 2800]: SHUTDOWN & SANITIZING ***/
user_pref("_user.js.parrot", "2800 syntax error: the parrot's bleedin' demised!");
@ -716,7 +691,7 @@ user_pref("privacy.cpd.cookies", false);
* which will display a blank value, and are not guaranteed to work ***/
user_pref("privacy.sanitize.timeSpan", 0);
/*** [SECTION 4500]: RFP (RESIST FINGERPRINTING)
/*** [SECTION 4500]: RFP (resistFingerprinting)
RFP covers a wide range of ongoing fingerprinting solutions.
It is an all-or-nothing buy in: you cannot pick and choose what parts you want
[TEST] https://arkenfox.github.io/TZP/tzp.html
@ -730,7 +705,7 @@ user_pref("privacy.sanitize.timeSpan", 0);
FF56
1369303 - spoof/disable performance API
1333651 - spoof User Agent & Navigator API
version: android version spoofed as ESR
version: android version spoofed as ESR (FF119 or lower)
OS: JS spoofed as Windows 10, OS 10.15, Android 10, or Linux | HTTP Headers spoofed as Windows or Android
1369319 - disable device sensor API
1369357 - disable site specific zoom
@ -772,7 +747,7 @@ user_pref("privacy.sanitize.timeSpan", 0);
1794628 - return "none" with inverted-colors (FF114)
***/
user_pref("_user.js.parrot", "4500 syntax error: the parrot's popped 'is clogs");
/* 4501: enable privacy.resistFingerprinting
/* 4501: enable RFP
* [SETUP-WEB] RFP can cause some website breakage: mainly canvas, use a canvas site exception via the urlbar
* RFP also has a few side effects: mainly timezone is UTC0, and websites will prefer light theme
* [NOTE] pbmode applies if true and the original pref is false
@ -787,7 +762,7 @@ user_pref("privacy.window.maxInnerHeight", 900);
/* 4503: disable mozAddonManager Web API [FF57+]
* [NOTE] To allow extensions to work on AMO, you also need 2662
* [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1384330,1406795,1415644,1453988 ***/
user_pref("privacy.resistFingerprinting.block_mozAddonManager", true); // [HIDDEN PREF FF57-108]
user_pref("privacy.resistFingerprinting.block_mozAddonManager", true);
/* 4504: enable RFP letterboxing [FF67+]
* Dynamically resizes the inner window by applying margins in stepped ranges [2]
* If you use the dimension pref, then it will only apply those resolutions.
@ -894,8 +869,6 @@ user_pref("_user.js.parrot", "5000 syntax error: the parrot's taken 'is last bow
// user_pref("browser.taskbar.lists.frequent.enabled", false);
// user_pref("browser.taskbar.lists.recent.enabled", false);
// user_pref("browser.taskbar.lists.tasks.enabled", false);
/* 5015: disable Windows taskbar preview [WINDOWS] ***/
// user_pref("browser.taskbar.previews.enable", false); // [DEFAULT: false]
/* 5016: discourage downloading to desktop
* 0=desktop, 1=downloads (default), 2=custom
* [SETTING] To set your custom default "downloads": General>Downloads>Save files to ***/
@ -952,7 +925,7 @@ user_pref("_user.js.parrot", "5500 syntax error: this is an ex-parrot!");
* Vulnerabilities [1] have increasingly been found, including those known and fixed
* in native programs years ago [2]. WASM has powerful low-level access, making
* certain attacks (brute-force) and vulnerabilities more possible
* [STATS] ~0.2% of websites, about half of which are for crytopmining / malvertising [2][3]
* [STATS] ~0.2% of websites, about half of which are for cryptomining / malvertising [2][3]
* [1] https://cve.mitre.org/cgi-bin/cvekey.cgi?keyword=wasm
* [2] https://spectrum.ieee.org/tech-talk/telecom/security/more-worries-over-the-security-of-web-assembly
* [3] https://www.zdnet.com/article/half-of-the-websites-using-webassembly-use-it-for-malicious-purposes ***/
@ -982,7 +955,7 @@ user_pref("_user.js.parrot", "5500 syntax error: this is an ex-parrot!");
* Firefox uses the system DNS to initially resolve the IP address of your DoH server.
* When set to a valid, working value that matches your "network.trr.uri" (0712) Firefox
* won't use the system DNS. If the IP doesn't match then DoH won't work ***/
// user_pref("network.trr.bootstrapAddr", "10.0.0.1") // [HIDDEN PREF]
// user_pref("network.trr.bootstrapAddr", "10.0.0.1"); // [HIDDEN PREF]
/*** [SECTION 6000]: DON'T TOUCH ***/
user_pref("_user.js.parrot", "6000 syntax error: the parrot's 'istory!");
@ -1014,7 +987,7 @@ user_pref("extensions.webcompat-reporter.enabled", false); // [DEFAULT: false]
/* 6012: enforce Quarantined Domains [FF115+]
* [WHY] https://support.mozilla.org/kb/quarantined-domains */
user_pref("extensions.quarantinedDomains.enabled", true); // [DEFAULT: true]
/* 6050: prefsCleaner: reset previously active items removed from arkenfox FF102+ ***/
/* 6050: prefsCleaner: previously active items removed from arkenfox 102-114 ***/
// user_pref("beacon.enabled", "");
// user_pref("browser.startup.blankWindow", "");
// user_pref("browser.newtab.preload", "");
@ -1031,8 +1004,21 @@ user_pref("extensions.quarantinedDomains.enabled", true); // [DEFAULT: true]
// user_pref("extensions.formautofill.creditCards.available", "");
// user_pref("extensions.formautofill.creditCards.supported", "");
// user_pref("middlemouse.contentLoadURL", "");
/* 6051: prefsCleaner: reset previously active items removed from arkenfox FF115+ ***/
/* 6051: prefsCleaner: previously active items removed from arkenfox 115-127 ***/
// user_pref("accessibility.force_disabled", "");
// user_pref("browser.fixup.alternate.enabled", "");
// user_pref("browser.urlbar.dnsResolveSingleWordsAfterSearch", "");
// user_pref("network.protocol-handler.external.ms-windows-store", "");
// user_pref("privacy.partition.always_partition_third_party_non_cookie_storage", "");
// user_pref("privacy.partition.always_partition_third_party_non_cookie_storage.exempt_sessionstorage", "");
// user_pref("privacy.partition.serviceWorkers", "");
/* 6052: prefsCleaner: deprecated ESR102 items from FF103-115 ***/
// user_pref("browser.cache.offline.enable", "");
// user_pref("extensions.formautofill.heuristics.enabled", "");
// user_pref("network.cookie.lifetimePolicy", "");
// user_pref("privacy.clearsitedata.cache.enabled", "");
// user_pref("privacy.resistFingerprinting.testGranularityMask", "");
// user_pref("security.pki.sha1_enforcement_level", "");
/*** [SECTION 7000]: DON'T BOTHER ***/
user_pref("_user.js.parrot", "7000 syntax error: the parrot's pushing up daisies!");
@ -1057,8 +1043,8 @@ user_pref("_user.js.parrot", "7000 syntax error: the parrot's pushing up daisies
/* 7003: disable non-modern cipher suites [1]
* [WHY] Passive fingerprinting. Minimal/non-existent threat of downgrade attacks
* [1] https://browserleaks.com/ssl ***/
// user_pref("security.ssl3.ecdhe_ecdsa_aes_128_sha", false); // [DEFAULT: false FF109+]
// user_pref("security.ssl3.ecdhe_ecdsa_aes_256_sha", false); // [DEFAULT: false FF109+]
// user_pref("security.ssl3.ecdhe_ecdsa_aes_128_sha", false);
// user_pref("security.ssl3.ecdhe_ecdsa_aes_256_sha", false);
// user_pref("security.ssl3.ecdhe_rsa_aes_128_sha", false);
// user_pref("security.ssl3.ecdhe_rsa_aes_256_sha", false);
// user_pref("security.ssl3.rsa_aes_128_gcm_sha256", false); // no PFS
@ -1110,8 +1096,10 @@ user_pref("_user.js.parrot", "7000 syntax error: the parrot's pushing up daisies
* [WHY] DNT is enforced with Tracking Protection which is used in ETP Strict (2701) ***/
// user_pref("privacy.donottrackheader.enabled", true);
/* 7016: customize ETP settings
* [NOTE] FPP (fingerprintingProtection) is ignored when RFP (4501) is enabled
* [WHY] Arkenfox only supports strict (2701) which sets these at runtime ***/
// user_pref("network.cookie.cookieBehavior", 5); // [DEFAULT: 5 FF103+]
// user_pref("network.cookie.cookieBehavior", 5); // [DEFAULT: 5]
// user_pref("privacy.fingerprintingProtection", true); // [FF114+] [ETP FF119+]
// user_pref("network.http.referer.disallowCrossSiteRelaxingDefault", true);
// user_pref("network.http.referer.disallowCrossSiteRelaxingDefault.top_navigation", true); // [FF100+]
// user_pref("privacy.partition.network_state.ocsp_cache", true);
@ -1182,42 +1170,8 @@ user_pref("browser.messaging-system.whatsNewPanel.enabled", false);
* [SETTING] Search>Search Bar>Use the address bar for search and navigation>Show search terms instead of URL... ***/
user_pref("browser.urlbar.showSearchTerms.enabled", false);
/*** [SECTION 9999]: DEPRECATED / REMOVED / LEGACY / RENAMED
Documentation denoted as [-]. Items deprecated prior to FF91 have been archived at [1]
[1] https://github.com/arkenfox/user.js/issues/123
***/
/*** [SECTION 9999]: DEPRECATED / RENAMED ***/
user_pref("_user.js.parrot", "9999 syntax error: the parrot's shuffled off 'is mortal coil!");
/* ESR102.x still uses all the following prefs
// [NOTE] replace the * with a slash in the line above to re-enable active ones
// FF103
// 2801: delete cookies and site data on exit - replaced by sanitizeOnShutdown* (2810)
// 0=keep until they expire (default), 2=keep until you close Firefox
// [SETTING] Privacy & Security>Cookies and Site Data>Delete cookies and site data when Firefox is closed
// [-] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1681493,1681495,1681498,1759665,1764761
user_pref("network.cookie.lifetimePolicy", 2);
// 6012: disable SHA-1 certificates
// [-] https://bugzilla.mozilla.org/1766687
// user_pref("security.pki.sha1_enforcement_level", 1); // [DEFAULT: 1]
// FF114
// 2816: set cache to clear on exit [FF96+]
// [NOTE] We already disable disk cache (1001) and clear on exit (2811) which is more robust
// [1] https://bugzilla.mozilla.org/1671182
// [-] https://bugzilla.mozilla.org/1821651
// user_pref("privacy.clearsitedata.cache.enabled", true);
// 4505: experimental RFP [FF91+]
// [-] https://bugzilla.mozilla.org/1824235
// user_pref("privacy.resistFingerprinting.testGranularityMask", 0);
// 5017: disable Form Autofill heuristics
// Heuristics controls Form Autofill on forms without @autocomplete attributes
// [-] https://bugzilla.mozilla.org/1829670
// user_pref("extensions.formautofill.heuristics.enabled", false); // [FF55+]
// FF115
// 7001: disable offline cache (appCache)
// [NOTE] appCache storage capability was removed in FF90
// [-] https://bugzilla.mozilla.org/1677718
// user_pref("browser.cache.offline.enable", false);
// ***/
/* ESR115.x still uses all the following prefs
// [NOTE] replace the * with a slash in the line above to re-enable active ones
// FF116
@ -1237,6 +1191,24 @@ user_pref("security.family_safety.mode", 0);
// [1] https://blog.mozilla.org/en/products/firefox/block-notification-requests/
// [-] https://bugzilla.mozilla.org/1842457
// user_pref("dom.webnotifications.serviceworker.enabled", false);
// FF118
// 1402: limit font visibility (Windows, Mac, some Linux) [FF94+]
// Uses hardcoded lists with two parts: kBaseFonts + kLangPackFonts [1], bundled fonts are auto-allowed
// In normal windows: uses the first applicable: RFP over TP over Standard
// In Private Browsing windows: uses the most restrictive between normal and private
// 1=only base system fonts, 2=also fonts from optional language packs, 3=also user-installed fonts
// [1] https://searchfox.org/mozilla-central/search?path=StandardFonts*.inc
// [-] https://bugzilla.mozilla.org/1847599
// user_pref("layout.css.font-visibility.private", 1);
// user_pref("layout.css.font-visibility.standard", 1);
// user_pref("layout.css.font-visibility.trackingprotection", 1);
// 2623: disable permissions delegation [FF73+]
// Currently applies to cross-origin geolocation, camera, mic and screen-sharing
// permissions, and fullscreen requests. Disabling delegation means any prompts
// for these will show/use their correct 3rd party origin
// [1] https://groups.google.com/forum/#!topic/mozilla.dev.platform/BdFOMAuCGW8/discussion
// [-] https://bugzilla.mozilla.org/1697151
// user_pref("permissions.delegation.enabled", false);
// ***/
/* END: internal custom pref to test for syntax errors ***/