tidy

it added as inactive in 140 due to bugs not fixed in time - seems stable now

scratchpad-scripts/arkenfox-cleanup.js

@@ -6,7 +6,7 @@
   There is an archived version at https://github.com/arkenfox/user.js/issues/123
   if you want the full list since jesus
 
-  Last updated: 14-August-2025
+  Last updated: 20-August-2025
 
   Instructions:
   - [optional] close Firefox and backup your profile
@@ -76,6 +76,9 @@
     'security.ssl3.rsa_des_ede3_sha', // 93
 
     /* REMOVED */
+    /* 141-153 */
+    'security.OCSP.enabled',
+    'security.OCSP.require',
     /* 129-140 */
     'dom.securecontext.allowlist_onions',
     'network.http.referer.hideOnionSource',

user.js

@@ -1,7 +1,7 @@
 /******
 *    name: arkenfox user.js
-*    date: 4 November 2025
-* version: 140
+*    date: 15 October 2025
+* version: 144
 *    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
@@ -23,7 +23,6 @@
        [SETUP-SECURITY] it's one item, read it
             [SETUP-WEB] can cause some websites to break
          [SETUP-CHROME] changes how Firefox itself behaves (i.e. not directly website related)
-         [SETUP-HARDEN] prefs you may like to add to overrides
   6. Override Recipes: https://github.com/arkenfox/user.js/issues/1080
 
 * RELEASES: https://github.com/arkenfox/user.js/releases
@@ -84,7 +83,7 @@ user_pref("browser.aboutConfig.showWarning", false);
 user_pref("_user.js.parrot", "0100 syntax error: the parrot's dead!");
 /* 0102: set startup page [SETUP-CHROME]
  * 0=blank, 1=home, 2=last visited page, 3=resume previous session
- * [NOTE] Session Restore is cleared if history is also cleared (2811+), and not used in Private Browsing mode
+ * [NOTE] Session Restore is cleared with history (2811+), and not used in Private Browsing mode
  * [SETTING] General>Startup>Restore previous session ***/
 user_pref("browser.startup.page", 0);
 /* 0103: set HOME+NEWWINDOW page
@@ -205,7 +204,7 @@ user_pref("network.prefetch-next", false);
 user_pref("network.dns.disablePrefetch", true);
 user_pref("network.dns.disablePrefetchFromHTTPS", true);
 /* 0603: disable predictor / prefetching ***/
-user_pref("network.predictor.enabled", false);
+user_pref("network.predictor.enabled", false); // [DEFAULT: false FF144+]
 user_pref("network.predictor.enable-prefetch", false); // [FF48+] [DEFAULT: false]
 /* 0604: disable link-mouseover opening connection to linked server
  * [1] https://news.slashdot.org/story/15/08/14/2321202/how-to-quash-firefoxs-silent-requests ***/
@@ -293,7 +292,7 @@ user_pref("browser.urlbar.yelp.featureGate", false); // [FF124+]
 /* 0807: disable urlbar clipboard suggestions [FF118+] ***/
    // user_pref("browser.urlbar.clipboard.featureGate", false);
 /* 0808: disable recent searches [FF120+]
- * [NOTE] Recent searches are cleared if history is cleared (2811+)
+ * [NOTE] Recent searches are cleared with history (2811+)
  * [1] https://support.mozilla.org/kb/search-suggestions-firefox ***/
    // user_pref("browser.urlbar.recentsearches.featureGate", false);
 /* 0810: disable search and form history
@@ -310,7 +309,7 @@ user_pref("browser.formfill.enable", 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
- * attacks. History can also be cleared on exit (2811+). However, social engineering [2#limits][4][5]
+ * attacks. Don't forget clearing history on exit (2811+). However, social engineering [2#limits][4][5]
  * and advanced targeted timing attacks could still produce usable results
  * [1] https://developer.mozilla.org/docs/Web/CSS/Privacy_and_the_:visited_selector
  * [2] https://dbaron.org/mozilla/visited-privacy
@@ -402,29 +401,6 @@ user_pref("security.ssl.require_safe_negotiation", true);
  * [3] https://blog.cloudflare.com/tls-1-3-overview-and-q-and-a/ ***/
 user_pref("security.tls.enable_0rtt_data", false);
 
-/** OCSP (Online Certificate Status Protocol)
-   [1] https://scotthelme.co.uk/revocation-is-broken/
-   [2] https://blog.mozilla.org/security/2013/07/29/ocsp-stapling-in-firefox/
-***/
-/* 1211: enforce OCSP fetching to confirm current validity of certificates
- * 0=disabled, 1=enabled (default), 2=enabled for EV certificates only
- * 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)
- * [NOTE] This pref only controls OCSP fetching and does not affect OCSP stapling
- * [SETTING] Privacy & Security>Security>Certificates>Query OCSP responder servers...
- * [1] https://en.wikipedia.org/wiki/Ocsp ***/
-user_pref("security.OCSP.enabled", 1); // [DEFAULT: 1]
-/* 1212: set OCSP fetch failures (non-stapled, see 1211) to hard-fail
- * [SETUP-WEB] SEC_ERROR_OCSP_SERVER_ERROR | SEC_ERROR_OCSP_UNAUTHORIZED_REQUEST
- * When a CA cannot be reached to validate a cert, Firefox just continues the connection (=soft-fail)
- * Setting this pref to true tells Firefox to instead terminate the connection (=hard-fail)
- * It is pointless to soft-fail when an OCSP fetch fails: you cannot confirm a cert is still valid (it
- * could have been revoked) and/or you could be under attack (e.g. malicious blocking of OCSP servers)
- * [1] https://blog.mozilla.org/security/2013/07/29/ocsp-stapling-in-firefox/
- * [2] https://www.imperialviolet.org/2014/04/19/revchecking.html
- * [3] https://letsencrypt.org/2024/12/05/ending-ocsp/ ***/
-user_pref("security.OCSP.require", true);
-
 /** CERTS / HPKP (HTTP Public Key Pinning) ***/
 /* 1223: enable strict PKP (Public Key Pinning)
  * 0=disabled, 1=allow user MiTM (default; such as your antivirus), 2=strict
@@ -433,12 +409,13 @@ user_pref("security.cert_pinning.enforcement_level", 2);
 /* 1224: enable CRLite [FF73+]
  * 0 = disabled
  * 1 = consult CRLite but only collect telemetry
- * 2 = consult CRLite and enforce both "Revoked" and "Not Revoked" results
- * 3 = consult CRLite and enforce "Not Revoked" results, but defer to OCSP for "Revoked" (default)
+ * 2 = consult CRLite and enforce both "Revoked" and "Not Revoked" results (default)
+ * 3 = consult CRLite and enforce "Not Revoked" results, but defer to OCSP for "Revoked" (removed FF145)
  * [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1429800,1670985,1753071
- * [2] https://blog.mozilla.org/security/tag/crlite/ ***/
+ * [2] https://blog.mozilla.org/security/tag/crlite/
+ * [3] https://hacks.mozilla.org/2025/08/crlite-fast-private-and-comprehensive-certificate-revocation-checking-in-firefox/ ***/
 user_pref("security.remote_settings.crlite_filters.enabled", true); // [DEFAULT: true FF137+]
-user_pref("security.pki.crlite_mode", 2);
+user_pref("security.pki.crlite_mode", 2); // [DEFAULT: 2 FF142+]
 
 /** MIXED CONTENT ***/
 /* 1241: disable insecure passive content (such as images) on https pages ***/
@@ -572,7 +549,7 @@ user_pref("browser.tabs.searchclipboardfor.middleclick", false); // [DEFAULT: fa
 user_pref("browser.contentanalysis.enabled", false); // [FF121+] [DEFAULT: false]
 user_pref("browser.contentanalysis.default_result", 0); // [FF127+] [DEFAULT: 0]
 /* 2635: disable referrer and storage access for resources injected by content scripts [FF139+] ***/
-   // user_pref("privacy.antitracking.isolateContentScriptResources", true);
+user_pref("privacy.antitracking.isolateContentScriptResources", true);
 /* 2640: disable CSP Level 2 Reporting [FF140+] ***/
 user_pref("security.csp.reporting.enabled", false);
 
@@ -622,12 +599,7 @@ user_pref("browser.contentblocking.category", "strict"); // [HIDDEN PREF]
  * [3] https://developer.mozilla.org/docs/Web/Privacy/State_Partitioning#storage_access_heuristics ***/
    // user_pref("privacy.antitracking.enableWebcompat", false);
 
-/*** [SECTION 2800]: SHUTDOWN & SANITIZING
-   We enable sanitizeOnShutdown to help prevent 1st party website tracking across sessions.
-   We consider history/downloads, which are not accessible to websites, as orthogonal and exempt these
-
-   [SETUP-HARDEN] to clear all history/downloads on close, add the appropriate overrides from 2800's
-***/
+/*** [SECTION 2800]: SHUTDOWN & SANITIZING ***/
 user_pref("_user.js.parrot", "2800 syntax error: the parrot's bleedin' demised!");
 /* 2810: enable Firefox to clear items on shutdown
  * [NOTE] In FF129+ clearing "siteSettings" on shutdown (2811+), or manually via site data (2820+) and
@@ -638,11 +610,11 @@ user_pref("privacy.sanitize.sanitizeOnShutdown", true);
 /** SANITIZE ON SHUTDOWN: IGNORES "ALLOW" SITE EXCEPTIONS ***/
 /* 2811: set/enforce clearOnShutdown items (if 2810 is true) [SETUP-CHROME] [FF128+] ***/
 user_pref("privacy.clearOnShutdown_v2.cache", true); // [DEFAULT: true]
-user_pref("privacy.clearOnShutdown_v2.historyFormDataAndDownloads", false); // [DEFAULT: true]
+user_pref("privacy.clearOnShutdown_v2.historyFormDataAndDownloads", true); // [DEFAULT: true]
    // user_pref("privacy.clearOnShutdown_v2.siteSettings", false); // [DEFAULT: false]
 /* 2812: set/enforce clearOnShutdown items [FF136+] ***/
-user_pref("privacy.clearOnShutdown_v2.browsingHistoryAndDownloads", false); // [DEFAULT: true]
-user_pref("privacy.clearOnShutdown_v2.downloads", false); // [HIDDEN]
+user_pref("privacy.clearOnShutdown_v2.browsingHistoryAndDownloads", true); // [DEFAULT: true]
+user_pref("privacy.clearOnShutdown_v2.downloads", true); // [HIDDEN]
 user_pref("privacy.clearOnShutdown_v2.formdata", true);
 /* 2813: set Session Restore to clear on shutdown (if 2810 is true) [FF34+]
  * [NOTE] Not needed if Session Restore is not used (0102) or it is already cleared with history (2811+)
@@ -662,12 +634,12 @@ user_pref("privacy.clearOnShutdown_v2.cookiesAndStorage", true);
 /* 2820: set manual "Clear Data" items [SETUP-CHROME] [FF128+]
  * Firefox remembers your last choices. This will reset them when you start Firefox
  * [SETTING] Privacy & Security>Browser Privacy>Cookies and Site Data>Clear Data ***/
-user_pref("privacy.clearSiteData.cache", true);
+user_pref("privacy.clearSiteData.cache", true); // [DEFAULT: true]
 user_pref("privacy.clearSiteData.cookiesAndStorage", false); // keep false until it respects "allow" site exceptions
-user_pref("privacy.clearSiteData.historyFormDataAndDownloads", false);
+user_pref("privacy.clearSiteData.historyFormDataAndDownloads", true);
    // user_pref("privacy.clearSiteData.siteSettings", false);
 /* 2821: set manual "Clear Data" items [FF136+] ***/
-user_pref("privacy.clearSiteData.browsingHistoryAndDownloads", false);
+user_pref("privacy.clearSiteData.browsingHistoryAndDownloads", true);
 user_pref("privacy.clearSiteData.formdata", true);
 
 /** SANITIZE HISTORY: IGNORES "ALLOW" SITE EXCEPTIONS ***/
@@ -676,10 +648,10 @@ user_pref("privacy.clearSiteData.formdata", true);
  * [SETTING] Privacy & Security>History>Custom Settings>Clear History ***/
 user_pref("privacy.clearHistory.cache", true); // [DEFAULT: true]
 user_pref("privacy.clearHistory.cookiesAndStorage", false);
-user_pref("privacy.clearHistory.historyFormDataAndDownloads", false); // [DEFAULT: true]
+user_pref("privacy.clearHistory.historyFormDataAndDownloads", true); // [DEFAULT: true]
    // user_pref("privacy.clearHistory.siteSettings", false); // [DEFAULT: false]
 /* 2831: set manual "Clear History" items [FF136+] ***/
-user_pref("privacy.clearHistory.browsingHistoryAndDownloads", false); // [DEFAULT: true]
+user_pref("privacy.clearHistory.browsingHistoryAndDownloads", true); // [DEFAULT: true]
 user_pref("privacy.clearHistory.formdata", true);
 
 /** SANITIZE MANUAL: TIMERANGE ***/
@@ -801,7 +773,7 @@ user_pref("_user.js.parrot", "4000 syntax error: the parrot's bereft of life!");
    1972600 - spoof network connection for HTMLMediaElement preload (FF142, ESR140.1)
    1975851 - return true for navigator.onLine (FF142, ESR140.1)
    1973265 - disable WebCodecs API (FF142)
-   1984333 - spoof navigator.hardwareConcurrency as 4 except mac return 8 (FF143+)
+   1984333 - spoof navigator.hardwareConcurrency as 4 except mac return 8 (FF144+)
        previously FF55+ it returned 2
 ***/
 user_pref("_user.js.parrot", "4500 syntax error: the parrot's popped 'is clogs");
@@ -844,10 +816,9 @@ user_pref("privacy.resistFingerprinting.block_mozAddonManager", true);
 user_pref("privacy.spoof_english", 1);
 /* 4507: skip browser.startup.blankWindow if RFP is used [FF136+] ***/
    // user_pref("privacy.resistFingerprinting.skipEarlyBlankFirstPaint", true); // [DEFAULT: true]
-/* 4510: enforce Contrast Control off [FF138+]
- * 0=automatic, 1=off, 2=custom
- * [SETTING] General>Language and Appearance>Contrast Control ***/
-   // user_pref("browser.display.document_color_use", 1); // [DEFAULT: 1 NON-WINDOWS]
+/* 4510: disable using system colors
+ * [SETTING] General>Language and Appearance>Fonts and Colors>Colors>Use system colors ***/
+user_pref("browser.display.use_system_colors", false); // [DEFAULT: false NON-WINDOWS]
 /* 4511: disable using system accent colors ***/
 user_pref("widget.non-native-theme.use-theme-accent", false); // [DEFAULT: false WINDOWS]
 /* 4512: enforce links targeting new windows to open in a new tab instead
@@ -1062,7 +1033,8 @@ user_pref("extensions.quarantinedDomains.enabled", true); // [DEFAULT: true]
    // user_pref("privacy.cpd.offlineApps", "");
    // user_pref("privacy.cpd.sessions", "");
 /* 6051: prefsCleaner: reset previously active items removed from arkenfox FF140+ ***/
-   // user_pref("browser.display.use_system_colors", "");
+   // user_pref("security.OCSP.enabled", "");
+   // user_pref("security.OCSP.require", "");
 
 /*** [SECTION 7000]: DON'T BOTHER ***/
 user_pref("_user.js.parrot", "7000 syntax error: the parrot's pushing up daisies!");