michel_ouba/FF_arkenfox_user.js
michel_ouba/FF_arkenfox_user.js
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Merge pull request #356 from ghacksuserjs/earthlng-patch-1

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1600 cleanup and header-rewrite
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Thorin-Oakenpants 2018-02-07 00:11:47 +00:00 committed by GitHub
commit 93a8f89191
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1 changed files with 19 additions and 24 deletions
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user.js
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@ -843,16 +843,14 @@ user_pref("gfx.font_rendering.graphite.enabled", false);
* [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.
/*** 1600: HEADERS / REFERERS
Only *cross domain* referers need controlling and XOriginPolicy (1603) is perfect for that. Thus we enforce
the default values for 1601, 1602, 1605 and 1606 to minimize breakage, and only tweak 1603 and 1604.
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
Our default settings provide the best balance between protection and amount of breakage.
To harden it a bit more you can set XOriginPolicy (1603) to 2 (+ optionally 1604 to 1 or 2).
To fix broken sites, temporarily set XOriginPolicy=0 and XOriginTrimmingPolicy=2 in about:config,
use the site and then change the values back. If you visit those sites regularly, use an extension.
full URI: https://example.com:8888/foo/bar.html?id=1234
scheme+host+path+port: https://example.com:8888/foo/bar.html
@ -862,32 +860,29 @@ user_pref("gfx.font_rendering.graphite.enabled", false);
***/
user_pref("_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 ***/
* 0=never, 1=send only when links are clicked, 2=for links and images (default) ***/
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 ***/
* 0=send full URI (default), 1=scheme+host+path+port, 2=scheme+host+port ***/
user_pref("network.http.referer.trimmingPolicy", 0);
/* 1603: CROSS ORIGIN: control 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
* [WARNING] Reset to default 0 if you have issues accessing your modem/router ***/
* 0=always (default), 1=only if base domains match, 2=only if hosts match ***/
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 ***/
* 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 ***/
* [WARNING] Spoofing effectively disables the anti-CSRF (Cross-Site Request Forgery) protections that some sites may rely on ***/
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)
/* 1606: ALL: set the default Referrer Policy
* 0=no-referer, 1=same-origin, 2=strict-origin-when-cross-origin, 3=no-referrer-when-downgrade
* [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);
* [2] https://developer.mozilla.org/docs/Web/HTTP/Headers/Referrer-Policy
* [3] https://blog.mozilla.org/security/2018/01/31/preventing-data-leaks-by-stripping-path-information-in-http-referrers/ ***/
user_pref("network.http.referer.userControlPolicy", 3); // (FF53-FF58) default: 3
user_pref("network.http.referer.defaultPolicy", 3); // (FF59+) default: 3
user_pref("network.http.referer.defaultPolicy.pbmode", 2); // (FF59+) default: 2
/* 1607: TOR: hide (not spoof) referrer when leaving a .onion domain (FF54+)
* [NOTE] Firefox cannot access .onion sites by default. We recommend you use
* TBB (Tor Browser Bundle) which is specifically designed for the dark web