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3 Commits
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 Thorin-Oakenpants
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1a9e0bb6dc | ||
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Thorin-Oakenpants
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8fe9905c35 | ||
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Thorin-Oakenpants
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bb45863be7 |
@@ -1,3 +1,5 @@
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This repo and the interative webpage linked below are the **_only official sources_** - do not trust any other sites claiming to be Arkenfox
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### 🟪 user.js
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A `user.js` is a configuration file that can control Firefox settings - for a more technical breakdown and explanation, you can read more in the [wiki](https://github.com/arkenfox/user.js/wiki/2.1-User.js)
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@@ -1,7 +1,7 @@
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/******
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* name: arkenfox user.js
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* date: 17 February 2026
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* version: 144
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* date: 30 June 2026
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* version: 151
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* urls: https://github.com/arkenfox/user.js [repo]
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* : https://arkenfox.github.io/gui/ [interactive]
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* license: MIT: https://github.com/arkenfox/user.js/blob/master/LICENSE.txt
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@@ -161,12 +161,16 @@ user_pref("network.connectivity-service.enabled", false);
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SB has taken many steps to preserve privacy. If required, a full url is never sent
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to Google, only a part-hash of the prefix, hidden with noise of other real part-hashes.
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Firefox takes measures such as stripping out identifying parameters and since SBv4 (FF57+)
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doesn't even use cookies. (#Turn on browser.safebrowsing.debug to monitor this activity)
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doesn't even use cookies. (#Turn on browser.safebrowsing.debug to monitor this activity).
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FF147+ uses SBv5 which incorporates Oblivous HTTP [5] and SBv5's local list mode [6]
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[1] https://feeding.cloud.geek.nz/posts/how-safe-browsing-works-in-firefox/
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[2] https://wiki.mozilla.org/Security/Safe_Browsing
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[3] https://support.mozilla.org/kb/how-does-phishing-and-malware-protection-work
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[4] https://educatedguesswork.org/posts/safe-browsing-privacy/
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[5] https://developers.google.com/safe-browsing/reference
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[6] https://developers.google.com/safe-browsing/reference/Local.List.Mode
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***/
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user_pref("_user.js.parrot", "0400 syntax error: the parrot's passed on!");
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/* 0401: disable SB (Safe Browsing)
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@@ -390,7 +394,7 @@ user_pref("_user.js.parrot", "1200 syntax error: the parrot's a stiff!");
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* but the problem is that the browser can't know that. Setting this pref to true is the only way for the
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* browser to ensure there will be no unsafe renegotiations on the channel between the browser and the server
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* [SETUP-WEB] SSL_ERROR_UNSAFE_NEGOTIATION: is it worth overriding this for that one site?
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* [STATS] SSL Labs (Nov 2025) reports almost 99.85% of top sites have secure renegotiation [4]
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* [STATS] SSL Labs (June 2025) reports almost 99.85% of top sites have secure renegotiation [4]
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* [1] https://wiki.mozilla.org/Security:Renegotiation
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* [2] https://datatracker.ietf.org/doc/html/rfc5746
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* [3] https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-3555
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@@ -754,10 +758,6 @@ user_pref("_user.js.parrot", "4000 syntax error: the parrot's bereft of life!");
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Modifier events suppressed are SHIFT and both ALT keys. Chrome is not affected.
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1459089 - disable OS locale in HTTP Accept-Language headers (ANDROID) (FF62)
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1479239 - return "no-preference" with prefers-reduced-motion (FF63)
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1363508 & 1826051 & 1957658 - spoof/suppress Pointer Events, spoof maxTouchPoints (FF64, FF132, FF143, ESR140.2)
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FF64: maxTouchPoints: 0 = desktop
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FF132: maxTouchPoints: 0 = mac | 10 = windows, linux, mobile
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FF143/140.2: maxTouchPoints: 0 = mac, linux | 10 = windows | 5 = mobile
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1492766 - spoof pointerEvent.pointerid (FF65)
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1485266 - disable exposure of system colors to CSS or canvas (FF67)
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1494034 - return "light" with prefers-color-scheme (FF67)
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@@ -775,6 +775,11 @@ user_pref("_user.js.parrot", "4000 syntax error: the parrot's bereft of life!");
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1787790 - normalize system fonts (FF128)
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1835987 - spoof timezone as Atlantic/Reykjavik (previously FF55+ was UTC) (FF128)
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1656377 - spoof pointerEvents azimuthAngle and altitudeAngle (FF131)
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1826051 & 1957658 & 2021715 - spoof/suppress Pointer Events, spoof maxTouchPoints (FF132, FF143/ESR140.2, FF150)
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previously FF64+ (1363508) it always returned maxTouchPoints as 0
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FF132: 0 = mac | 10 = windows, linux, mobile
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FF143: 0 = mac, linux | 10 = windows | 5 = mobile | no longer spoof touch PointerEvents | backported to ESR140.2
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FF150: 5 = linux
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1834307 - always use smooth scrolling (FF132)
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1918202 - spoof screen orientation based on spoofed screen size and platform (FF132)
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previously FF50+ it always returned landscape-primary and an angle of 0
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@@ -1059,7 +1064,7 @@ user_pref("_user.js.parrot", "7000 syntax error: the parrot's pushing up daisies
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/* 7003: disable non-modern cipher suites [1]
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* [WHY] Passive fingerprinting. Minimal/non-existent threat of downgrade attacks
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* [1] https://browserleaks.com/ssl ***/
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// user_pref("security.ssl3.ecdhe_ecdsa_aes_128_sha", false);
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// user_pref("security.ssl3.ecdhe_ecdsa_aes_128_sha", false); // [DEFAULT: false FF150]
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// user_pref("security.ssl3.ecdhe_ecdsa_aes_256_sha", false);
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// user_pref("security.ssl3.ecdhe_rsa_aes_128_sha", false);
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// user_pref("security.ssl3.ecdhe_rsa_aes_256_sha", false);
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@@ -1147,10 +1152,16 @@ user_pref("_user.js.parrot", "7000 syntax error: the parrot's pushing up daisies
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* [WHY] Passive and active fingerprinting. Mostly redundant with Tracking Protection
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* in ETP Strict (2701) and sanitizing on close (2800s) ***/
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// user_pref("privacy.globalprivacycontrol.enabled", true);
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/* 7022: bFPP (baselineFingerprintingProtection) [FF139+]
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* [WHY] Arkenfox only supports ETP Strict (2701) which enables FPP browser-wide (normal and private
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* browsing window contexts). If FPP is enabled in the same context as bFPP, FPP takes precedence.
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// user_pref("privacy.baselineFingerprintingProtection", true);
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// user_pref("privacy.baselineFingerprintingProtection.granularOverrides", "");
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// user_pref("privacy.baselineFingerprintingProtection.overrides", "");
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/*** [SECTION 8000]: DON'T BOTHER: FINGERPRINTING
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[WHY] They are insufficient to help anti-fingerprinting and do more harm than good
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[WARNING] DO NOT USE with RFP. RFP already covers these and they can interfere
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[WHY] They are insufficient for fingerprinting protection and do more harm than good
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[WARNING] DO NOT USE: they can interfere with built-in solutions such as RFP and FPP
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***/
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user_pref("_user.js.parrot", "8000 syntax error: the parrot's crossed the Jordan");
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/* 8001: prefsCleaner: reset items useless for anti-fingerprinting ***/
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@@ -1180,6 +1191,8 @@ user_pref("_user.js.parrot", "8000 syntax error: the parrot's crossed the Jordan
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Arkenfox does not consider Firefox telemetry to be a privacy or security concern - comments below.
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But since most arkenfox users prefer it disabled, we'll do that rather than cause overrides.
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READ: https://ritter.vg/blog-telemetry.html
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Opt-out
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- Telemetry is essential: a browser engine is a _very_ large complex beast costing billions to maintain
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- Opt-in telemetry _does not_ work and results in data that is unrepresentative and may be misleading
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