Update 'user.js'
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user.js
67
user.js
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@ -464,30 +464,6 @@ user_pref("network.http.speculative-parallel-limit", 0);
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// https://www.internetsociety.org/tag/ipv6-security/
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user_pref("network.dns.disableIPv6", true);
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// -------------------------------------
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// Disable HTTP2
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// HTTP2 raises concerns with "multiplexing" and "server push", does nothing to
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// enhance privacy, and opens up a number of server-side fingerprinting opportunities
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// [WARNING] Don't disable HTTP2. Don't be that one person using HTTP1.1 on HTTP2 sites
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// [STATS] ~46% of sites (July 2021)
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// https://http2.github.io/faq/
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// https://blog.scottlogic.com/2014/11/07/http-2-a-quick-look.html
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// https://datatracker.ietf.org/doc/html/rfc7540#section-10.8
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// https://queue.acm.org/detail.cfm?id=2716278
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// https://w3techs.com/technologies/details/ce-http2/all/all ***/
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// user_pref("network.http.spdy.enabled", false);
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// user_pref("network.http.spdy.enabled.deps", false);
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// user_pref("network.http.spdy.enabled.http2", false);
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// user_pref("network.http.spdy.websockets", false); // [FF65+]
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// -------------------------------------
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// Disable HTTP Alternative Services [FF37+]
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// [SETUP-PERF] Relax this if you have FPI enabled and you understand the
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// consequences. FPI isolates these, but it was designed with the Tor protocol in mind,
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// and the Tor Browser has extra protection, including enhanced sanitizing per Identity.
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// https://tools.ietf.org/html/rfc7838#section-9
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// https://www.mnot.net/blog/2016/03/09/alt-svc ***/
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user_pref("network.http.altsvc.enabled", false);
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user_pref("network.http.altsvc.oe", false);
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// -------------------------------------
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// Set the proxy server to do any DNS lookups when using SOCKS
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// e.g. in Tor, this stops your local DNS server from knowing your Tor destination
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// as a remote Tor node will handle the DNS request
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@ -543,7 +519,7 @@ user_pref("browser.fixup.alternate.enabled", false);
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// Display all parts of the url in the location bar ***/
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user_pref("browser.urlbar.trimURLs", false);
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// -------------------------------------
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// Disable coloring of visited links - CSS history leak
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// Disable coloring of visited links
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// Bulk rapid history sniffing was mitigated in 2010. Slower and more expensive
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// redraw timing attacks were largely mitigated in FF77+. Using RFP further hampers timing
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// attacks. Don't forget clearing history on close. However, social engineering
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@ -625,11 +601,11 @@ user_pref("signon.management.page.breachAlertUrl", "");
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// There are no preferences for this. It is all handled internally
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// [SETTING] Privacy & Security>Logins and Passwords>Use a Primary Password
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// https://support.mozilla.org/kb/use-primary-password-protect-stored-logins-and-pas ***/
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// Set how often Firefox should ask for the primary password
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// Set when Firefox should prompt for the primary password
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// 0=the first time (default), 1=every time it's needed, 2=every n minutes ***/
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user_pref("security.ask_for_password", 2);
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// -------------------------------------
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// Set how often in minutes Firefox should ask for the primary password
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// Set how long in minutes Firefox should remember the primary password
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// in minutes, default is 30 ***/
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user_pref("security.password_lifetime", 5); // [DEFAULT: 30]
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// -------------------------------------
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@ -887,7 +863,7 @@ user_pref("gfx.font_rendering.opentype_svg.enabled", false);
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// -------------------------------------
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// Disable graphite
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// Graphite has had many critical security issues in the past
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// https://www.mozilla.org/security/advisories/mfsa2017-15/#CVE-2017-7778
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// https://cve.mitre.org/cgi-bin/cvekey.cgi?keyword=firefox+graphite
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// https://en.wikipedia.org/wiki/Graphite_(SIL) ***/
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user_pref("gfx.font_rendering.graphite.enabled", false);
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// -------------------------------------
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@ -1068,7 +1044,7 @@ user_pref("javascript.options.asmjs", false);
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// [NOTE] In FF75+, when **both** Ion and JIT are disabled, **and** the new
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// hidden pref is enabled, then Ion can still be used by extensions (1599226)
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// [WARNING] Disabling Ion/JIT can cause some site issues and performance loss
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// https://cve.mitre.org/cgi-bin/cvekey.cgi?keyword=Firefox+JIT
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// https://cve.mitre.org/cgi-bin/cvekey.cgi?keyword=firefox+jit
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user_pref("javascript.options.ion", false);
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user_pref("javascript.options.baselinejit", false);
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user_pref("javascript.options.native_regexp", false);
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@ -1161,16 +1137,6 @@ user_pref("devtools.remote.adb.extensionURL", ""); // [FF64+]
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user_pref("devtools.remote.adb.extensionID", "");
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user_pref("devtools.selfxss.count", 0);
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// -------------------------------------
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// Disable MathML (Mathematical Markup Language) [FF51+] [SETUP-HARDEN]
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// [TEST] https://arkenfox.github.io/TZP/tzp.html#misc
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// https://bugzilla.mozilla.org/1173199 ***/
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user_pref("mathml.disabled", true);
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// -------------------------------------
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// Disable in-content SVG (Scalable Vector Graphics) [FF53+]
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// [WARNING] Expect breakage including youtube player controls
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// https://bugzilla.mozilla.org/1216893 ***/
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// user_pref("svg.disabled", true);
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// -------------------------------------
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// Disable middle mouse click opening links from clipboard
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// https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/10089 ***/
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user_pref("middlemouse.contentLoadURL", false);
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@ -1546,6 +1512,29 @@ user_pref("permissions.default.xr", 0); // Virtual Reality
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// [WHY] Defaults are fine. They can be overridden by a site-controlled Referrer Policy
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// user_pref("network.http.referer.defaultPolicy", 2); // [DEFAULT: 2 FF87+]
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// user_pref("network.http.referer.defaultPolicy.pbmode", 2); // [DEFAULT: 2]
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// -------------------------------------
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// Disable HTTP2
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// [WHY] Passive fingerprinting. ~50% of sites use HTTP2
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// https://w3techs.com/technologies/details/ce-http2/all/all
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// user_pref("network.http.spdy.enabled", false);
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// user_pref("network.http.spdy.enabled.deps", false);
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// user_pref("network.http.spdy.enabled.http2", false);
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// user_pref("network.http.spdy.websockets", false); // [FF65+]
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// -------------------------------------
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// Disable HTTP Alternative Services [FF37+]
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// [WHY] Already isolated by network partitioning (FF85+) or FPI
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// user_pref("network.http.altsvc.enabled", false);
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// user_pref("network.http.altsvc.oe", false);
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// -------------------------------------
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// Disable MathML (Mathematical Markup Language) [FF51+]
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// [WHY] Fingerprintable, breakage, threat model
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// https://cve.mitre.org/cgi-bin/cvekey.cgi?keyword=mathml
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user_pref("mathml.disabled", true); //
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// -------------------------------------
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// Disable in-content SVG (Scalable Vector Graphics) [FF53+]
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// [WHY] Fingerprintable, breakage, threat model
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// https://cve.mitre.org/cgi-bin/cvekey.cgi?keyword=firefox+svg
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// user_pref("svg.disabled", true); // 1216893
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//
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// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
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// DON'T BOTHER: NON-RFP
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