grrrrr .. must. be. consistent.

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   There is an archived version at https://github.com/arkenfox/user.js/issues/123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: 20-August-2025
+  Last updated: 1-November-2025
 
   Instructions:
   - [optional] close Firefox and backup your profile
@@ -77,6 +77,7 @@
 
     /* REMOVED */
     /* 141-153 */
+    'browser.display.use_system_colors',
     'security.OCSP.enabled',
     'security.OCSP.require',
     /* 129-140 */

user.js

@@ -1,6 +1,6 @@
 /******
 *    name: arkenfox user.js
-*    date: 15 October 2025
+*    date: 5 November 2025
 * version: 144
 *    urls: https://github.com/arkenfox/user.js [repo]
 *        : https://arkenfox.github.io/gui/ [interactive]
@@ -23,6 +23,7 @@
        [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
@@ -83,7 +84,7 @@ 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 with history (2811+), and not used in Private Browsing mode
+ * [NOTE] Session Restore is cleared if history is also cleared (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
@@ -292,7 +293,7 @@ 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 with history (2811+)
+ * [NOTE] Recent searches are cleared if history is cleared (2811+)
  * [1] https://support.mozilla.org/kb/search-suggestions-firefox ***/
    // user_pref("browser.urlbar.recentsearches.featureGate", false);
 /* 0810: disable search and form history
@@ -309,7 +310,7 @@ 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. Don't forget clearing history on exit (2811+). However, social engineering [2#limits][4][5]
+ * attacks. History can also be cleared 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
@@ -599,7 +600,12 @@ 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 ***/
+/*** [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
+***/
 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
@@ -610,11 +616,11 @@ 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", true); // [DEFAULT: true]
+user_pref("privacy.clearOnShutdown_v2.historyFormDataAndDownloads", false); // [DEFAULT: true]
    // user_pref("privacy.clearOnShutdown_v2.siteSettings", false); // [DEFAULT: false]
 /* 2812: set/enforce clearOnShutdown items [FF136+] ***/
-user_pref("privacy.clearOnShutdown_v2.browsingHistoryAndDownloads", true); // [DEFAULT: true]
+user_pref("privacy.clearOnShutdown_v2.browsingHistoryAndDownloads", false); // [DEFAULT: true]
-user_pref("privacy.clearOnShutdown_v2.downloads", true); // [HIDDEN]
+user_pref("privacy.clearOnShutdown_v2.downloads", false); // [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+)
@@ -636,10 +642,10 @@ user_pref("privacy.clearOnShutdown_v2.cookiesAndStorage", true);
  * [SETTING] Privacy & Security>Browser Privacy>Cookies and Site Data>Clear Data ***/
 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", true);
+user_pref("privacy.clearSiteData.historyFormDataAndDownloads", false);
    // user_pref("privacy.clearSiteData.siteSettings", false);
 /* 2821: set manual "Clear Data" items [FF136+] ***/
-user_pref("privacy.clearSiteData.browsingHistoryAndDownloads", true);
+user_pref("privacy.clearSiteData.browsingHistoryAndDownloads", false);
 user_pref("privacy.clearSiteData.formdata", true);
 
 /** SANITIZE HISTORY: IGNORES "ALLOW" SITE EXCEPTIONS ***/
@@ -648,10 +654,10 @@ 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", true); // [DEFAULT: true]
+user_pref("privacy.clearHistory.historyFormDataAndDownloads", false); // [DEFAULT: true]
    // user_pref("privacy.clearHistory.siteSettings", false); // [DEFAULT: false]
 /* 2831: set manual "Clear History" items [FF136+] ***/
-user_pref("privacy.clearHistory.browsingHistoryAndDownloads", true); // [DEFAULT: true]
+user_pref("privacy.clearHistory.browsingHistoryAndDownloads", false); // [DEFAULT: true]
 user_pref("privacy.clearHistory.formdata", true);
 
 /** SANITIZE MANUAL: TIMERANGE ***/
@@ -816,9 +822,10 @@ 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: disable using system colors
+/* 4510: enforce Contrast Control off [FF138+]
- * [SETTING] General>Language and Appearance>Fonts and Colors>Colors>Use system colors ***/
+ * 0=automatic, 1=off, 2=custom
-user_pref("browser.display.use_system_colors", false); // [DEFAULT: false NON-WINDOWS]
+ * [SETTING] General>Language and Appearance>Contrast Control ***/
+   // user_pref("browser.display.document_color_use", 1); // [DEFAULT: 1 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
@@ -1033,6 +1040,7 @@ 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", "");