v111 (#1650)

fixes #1624

README.md

@@ -7,7 +7,7 @@ A `user.js` is a configuration file that can control Firefox settings - for a mo
 
 The `arkenfox user.js` is a **template** which aims to provide as much privacy and enhanced security as possible, and to reduce tracking and fingerprinting as much as possible - while minimizing any loss of functionality and breakage (but it will happen).
 
-Everyone, experts included, should at least read the [wiki](https://github.com/arkenfox/user.js/wiki), as it contains important information regarding a few `user.js` settings.
+Everyone, experts included, should at least read the [wiki](https://github.com/arkenfox/user.js/wiki), as it contains important information regarding a few `user.js` settings. There is also an [interactive current release](https://arkenfox.github.io/gui/), thanks to [icpantsparti2](https://github.com/icpantsparti2).
 
 Note that we do *not* recommend connecting over Tor on Firefox. Use the [Tor Browser](https://www.torproject.org/projects/torbrowser.html.en) if your [threat model](https://2019.www.torproject.org/about/torusers.html) calls for it, or for accessing hidden services.
 

prefsCleaner.bat

@@ -3,17 +3,19 @@ TITLE prefs.js cleaner
 
 REM ### prefs.js cleaner for Windows
 REM ## author: @claustromaniac
-REM ## version: 2.4
+REM ## version: 2.7
 
 CD /D "%~dp0"
 
+IF /I "%~1"=="-unattended" (SET _ua=1)
+
 :begin
 ECHO:
 ECHO:
 ECHO                 ########################################
 ECHO                 ####  prefs.js cleaner for Windows  ####
 ECHO                 ####        by claustromaniac       ####
-ECHO                 ####              v2.4              ####
+ECHO                 ####              v2.7              ####
 ECHO                 ########################################
 ECHO:
 CALL :message "This script should be run from your Firefox profile directory."
@@ -22,17 +24,22 @@ CALL :message "This will allow inactive preferences to be reset to their default
 ECHO   This Firefox profile shouldn't be in use during the process.
 CALL :message ""
 TIMEOUT 1 /nobreak >nul
-CHOICE /C SHE /N /M "Start [S] Help [H] Exit [E]"
+
-CLS
+IF NOT DEFINED _ua (
-IF ERRORLEVEL 3 (EXIT /B)
+	CHOICE /C SHE /N /M "Start [S] Help [H] Exit [E]"
-IF ERRORLEVEL 2 (GOTO :showhelp)
+	CLS
+	IF ERRORLEVEL 3 (EXIT /B)
+	IF ERRORLEVEL 2 (GOTO :showhelp)
+)
 IF NOT EXIST "user.js" (CALL :abort "user.js not found in the current directory." 30)
 IF NOT EXIST "prefs.js" (CALL :abort "prefs.js not found in the current directory." 30)
 CALL :strlenCheck
 CALL :FFcheck
+
 CALL :message "Backing up prefs.js..."
-SET "_time=%time: =0%"
+FOR /F "delims=" %%# IN ('powershell get-date -format "{yyyyMMdd_HHmmss}"') DO @SET ldt=%%#
-COPY /B /V /Y prefs.js "prefs-backup-%date:/=-%_%_time::=.%.js"
+COPY /B /V /Y prefs.js "prefs-backup-%ldt%.js"
+
 CALL :message "Cleaning prefs.js..."
 CALL :cleanup
 CALL :message "All done!"

prefsCleaner.sh

@@ -2,33 +2,54 @@
 
 ## prefs.js cleaner for Linux/Mac
 ## author: @claustromaniac
-## version: 1.5
+## version: 1.6
 
 ## special thanks to @overdodactyl and @earthlng for a few snippets that I stol..*cough* borrowed from the updater.sh
 
-currdir=$(pwd)
+## DON'T GO HIGHER THAN VERSION x.9 !! ( because of ASCII comparison in update_prefsCleaner() )
+
+readonly CURRDIR=$(pwd)
 
 ## get the full path of this script (readlink for Linux, greadlink for Mac with coreutils installed)
-sfp=$(readlink -f "${BASH_SOURCE[0]}" 2>/dev/null || greadlink -f "${BASH_SOURCE[0]}" 2>/dev/null)
+SCRIPT_FILE=$(readlink -f "${BASH_SOURCE[0]}" 2>/dev/null || greadlink -f "${BASH_SOURCE[0]}" 2>/dev/null)
 
 ## fallback for Macs without coreutils
-if [ -z "$sfp" ]; then sfp=${BASH_SOURCE[0]}; fi
+[ -z "$SCRIPT_FILE" ] && SCRIPT_FILE=${BASH_SOURCE[0]}
 
-## change directory to the Firefox profile directory
+
-cd "$(dirname "${sfp}")"
+AUTOUPDATE=true
+QUICKSTART=false
+
+## download method priority: curl -> wget
+DOWNLOAD_METHOD=''
+if command -v curl >/dev/null; then
+	DOWNLOAD_METHOD='curl --max-redirs 3 -so'
+elif command -v wget >/dev/null; then
+	DOWNLOAD_METHOD='wget --max-redirect 3 --quiet -O'
+else
+	AUTOUPDATE=false
+	echo -e "No curl or wget detected.\nAutomatic self-update disabled!"
+fi
 
 fQuit() {
 	## change directory back to the original working directory
-	cd "${currdir}"
+	cd "${CURRDIR}"
 	[ "$1" -eq 0 ] && echo -e "\n$2" || echo -e "\n$2" >&2
 	exit $1
 }
 
 fUsage() {
-	echo -e "\nUsage: $0 [-s]"
+	echo -e "\nUsage: $0 [-ds]"
 	echo -e "
 Optional Arguments:
-    -s           Start immediately"
+    -s           Start immediately
+    -d           Don't auto-update prefsCleaner.sh"
+}
+
+download_file() { # expects URL as argument ($1)
+  declare -r tf=$(mktemp)
+
+  $DOWNLOAD_METHOD "${tf}" "$1" &>/dev/null && echo "$tf" || echo '' # return the temp-filename or empty string on error
 }
 
 fFF_check() {
@@ -40,6 +61,24 @@ fFF_check() {
 	done
 }
 
+## returns the version number of a prefsCleaner.sh file
+get_prefsCleaner_version() {
+	echo "$(sed -n '5 s/.*[[:blank:]]\([[:digit:]]*\.[[:digit:]]*\)/\1/p' "$1")"
+}
+
+## updates the prefsCleaner.sh file based on the latest public version
+update_prefsCleaner() {
+	declare -r tmpfile="$(download_file 'https://raw.githubusercontent.com/arkenfox/user.js/master/prefsCleaner.sh')"
+	[ -z "$tmpfile" ] && echo -e "Error! Could not download prefsCleaner.sh" && return 1 # check if download failed
+
+	[[ $(get_prefsCleaner_version "$SCRIPT_FILE") == $(get_prefsCleaner_version "$tmpfile") ]] && return 0
+
+	mv "$tmpfile" "$SCRIPT_FILE"
+	chmod u+x "$SCRIPT_FILE"
+	"$SCRIPT_FILE" "$@" -d
+	exit 0
+}
+
 fClean() {
 	# the magic happens here
 	prefs="@@"
@@ -78,18 +117,37 @@ fStart() {
 	fQuit 0 "All done!"
 }
 
+
+while getopts "sd" opt; do
+	case $opt in
+		s)
+			QUICKSTART=true
+			;;
+		d)
+			AUTOUPDATE=false
+			;;
+	esac
+done
+
+## change directory to the Firefox profile directory
+cd "$(dirname "${SCRIPT_FILE}")"
+
+[ "$AUTOUPDATE" = true ] && update_prefsCleaner "$@"
+
 echo -e "\n\n"
 echo "                   ╔══════════════════════════╗"
 echo "                   ║     prefs.js cleaner     ║"
 echo "                   ║    by claustromaniac     ║"
-echo "                   ║           v1.5           ║"
+echo "                   ║           v1.6           ║"
 echo "                   ╚══════════════════════════╝"
 echo -e "\nThis script should be run from your Firefox profile directory.\n"
 echo "It will remove any entries from prefs.js that also exist in user.js."
 echo "This will allow inactive preferences to be reset to their default values."
 echo -e "\nThis Firefox profile shouldn't be in use during the process.\n"
 
-[ "$1" == '-s' ] && fStart
+[ "$QUICKSTART" = true ] && fStart
+
+echo -e "\nIn order to proceed, select a command below by entering its corresponding number.\n"
 
 select option in Start Help Exit; do
 	case $option in
@@ -113,3 +171,5 @@ select option in Start Help Exit; do
 			;;
 	esac
 done
+
+fQuit 0

scratchpad-scripts/arkenfox-cleanup.js

@@ -3,7 +3,7 @@
   - removed from the arkenfox user.js
   - deprecated by Mozilla but listed in the arkenfox user.js in the past
 
-  Last updated: 4-November-2022
+  Last updated: 27-January-2023
 
   Instructions:
   - [optional] close Firefox and backup your profile
@@ -238,13 +238,19 @@
 
     /* REMOVED */
     /* 103+ */
+    'beacon.enabled',
+    'browser.startup.blankWindow',
     'browser.newtab.preload',
     'browser.newtabpage.activity-stream.feeds.discoverystreamfeed',
     'browser.newtabpage.activity-stream.feeds.snippets',
+    'browser.region.network.url',
+    'browser.region.update.enabled',
+    'browser.search.region',
     'browser.ssl_override_behavior',
     'browser.tabs.warnOnClose',
     'devtools.chrome.enabled',
     'dom.disable_beforeunload',
+    'dom.disable_open_during_load',
     'dom.netinfo.enabled',
     'dom.vr.enabled',
     'extensions.formautofill.addresses.supported',

updater.bat

@@ -3,10 +3,10 @@ TITLE arkenfox user.js updater
 
 REM ## arkenfox user.js updater for Windows
 REM ## author: @claustromaniac
-REM ## version: 4.16
+REM ## version: 4.19
 REM ## instructions: https://github.com/arkenfox/user.js/wiki/5.1-Updater-[Options]#-windows
 
-SET v=4.15
+SET v=4.19
 
 VERIFY ON
 CD /D "%~dp0"
@@ -177,8 +177,8 @@ IF EXIST user.js.new (
 		IF DEFINED _singlebackup (
 			MOVE /Y user.js user.js.bak >nul
 		) ELSE (
-			SET "_time=!time: =0!"
+			FOR /F "delims=" %%# IN ('powershell get-date -format "{yyyyMMdd_HHmmss}"') DO @SET ldt=%%#
-			MOVE /Y user.js "user-backup-!date:/=-!_!_time::=.!.js" >nul
+			MOVE /Y user.js "user-backup-!ldt!.js" >nul
 		)
 		REN user.js.new user.js
 		CALL :message "Update complete."

user.js

@@ -1,7 +1,7 @@
 /******
 *    name: arkenfox user.js
-*    date: 6 November 2022
+*    date: 30 March 2023
-* version: 106
+* version: 111
 *     url: https://github.com/arkenfox/user.js
 * license: MIT: https://github.com/arkenfox/user.js/blob/master/LICENSE.txt
 
@@ -110,13 +110,6 @@ user_pref("geo.provider.ms-windows-location", false); // [WINDOWS]
 user_pref("geo.provider.use_corelocation", false); // [MAC]
 user_pref("geo.provider.use_gpsd", false); // [LINUX]
 user_pref("geo.provider.use_geoclue", false); // [FF102+] [LINUX]
-/* 0203: disable region updates
- * [1] https://firefox-source-docs.mozilla.org/toolkit/modules/toolkit_modules/Region.html ***/
-user_pref("browser.region.network.url", ""); // [FF78+]
-user_pref("browser.region.update.enabled", false); // [FF79+]
-/* 0204: set search region
- * [NOTE] May not be hidden if Firefox has changed your settings due to your region (0203) ***/
-   // user_pref("browser.search.region", "US"); // [HIDDEN PREF]
 /* 0210: set preferred language for displaying pages
  * [SETTING] General>Language and Appearance>Language>Choose your preferred language...
  * [TEST] https://addons.mozilla.org/about ***/
@@ -268,7 +261,8 @@ user_pref("_user.js.parrot", "0700 syntax error: the parrot's given up the ghost
 /* 0701: disable IPv6
  * IPv6 can be abused, especially with MAC addresses, and can leak with VPNs: assuming
  * your ISP and/or router and/or website is IPv6 capable. Most sites will fall back to IPv4
- * [STATS] Firefox telemetry (Sept 2022) shows ~8% of successful connections are IPv6
+ * [SETUP-WEB] PR_CONNECT_RESET_ERROR: this pref *might* be the cause
+ * [STATS] Firefox telemetry (Feb 2023) shows ~9% of successful connections are IPv6
  * [NOTE] This is an application level fallback. Disabling IPv6 is best done at an
  * OS/network level, and/or configured properly in VPN setups. If you are not masking your IP,
  * then this won't make much difference. If you are masking your IP, then it can only help.
@@ -432,7 +426,7 @@ user_pref("_user.js.parrot", "1200 syntax error: the parrot's a stiff!");
  * but the problem is that the browser can't know that. Setting this pref to true is the only way for the
  * browser to ensure there will be no unsafe renegotiations on the channel between the browser and the server
  * [SETUP-WEB] SSL_ERROR_UNSAFE_NEGOTIATION: is it worth overriding this for that one site?
- * [STATS] SSL Labs (Sept 2022) reports over 99.3% of top sites have secure renegotiation [4]
+ * [STATS] SSL Labs (Feb 2023) reports over 99.3% of top sites have secure renegotiation [4]
  * [1] https://wiki.mozilla.org/Security:Renegotiation
  * [2] https://datatracker.ietf.org/doc/html/rfc5746
  * [3] https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-3555
@@ -477,8 +471,7 @@ user_pref("security.OCSP.require", true);
 user_pref("security.family_safety.mode", 0);
 /* 1223: enable strict PKP (Public Key Pinning)
  * 0=disabled, 1=allow user MiTM (default; such as your antivirus), 2=strict
- * [SETUP-WEB] MOZILLA_PKIX_ERROR_KEY_PINNING_FAILURE: If you rely on an AV (antivirus) to protect
+ * [SETUP-WEB] MOZILLA_PKIX_ERROR_KEY_PINNING_FAILURE ***/
- * your web browsing by inspecting ALL your web traffic, then override to current default ***/
 user_pref("security.cert_pinning.enforcement_level", 2);
 /* 1224: enable CRLite [FF73+]
  * 0 = disabled
@@ -491,8 +484,8 @@ user_pref("security.remote_settings.crlite_filters.enabled", true);
 user_pref("security.pki.crlite_mode", 2);
 
 /** MIXED CONTENT ***/
-/* 1241: disable insecure passive content (such as images) on https pages [SETUP-WEB] ***/
+/* 1241: disable insecure passive content (such as images) on https pages ***/
-user_pref("security.mixed_content.block_display_content", true);
+   // user_pref("security.mixed_content.block_display_content", true); // Defense-in-depth (see 1244)
 /* 1244: enable HTTPS-Only mode in all windows [FF76+]
  * When the top-level is HTTPS, insecure subresources are also upgraded (silent fail)
  * [SETTING] to add site exceptions: Padlock>HTTPS-Only mode>On (after "Continue to HTTP Site")
@@ -564,15 +557,6 @@ user_pref("privacy.userContext.ui.enabled", true);
 
 /*** [SECTION 2000]: PLUGINS / MEDIA / WEBRTC ***/
 user_pref("_user.js.parrot", "2000 syntax error: the parrot's snuffed it!");
-/* 2001: disable WebRTC (Web Real-Time Communication)
- * Firefox uses mDNS hostname obfuscation on desktop (except Windows7/8) and the
- * private IP is NEVER exposed, except if required in TRUSTED scenarios; i.e. after
- * you grant device (microphone or camera) access
- * [SETUP-HARDEN] Test first. Windows7/8 users only: behind a proxy who never use WebRTC
- * [TEST] https://browserleaks.com/webrtc
- * [1] https://groups.google.com/g/discuss-webrtc/c/6stQXi72BEU/m/2FwZd24UAQAJ
- * [2] https://datatracker.ietf.org/doc/html/draft-ietf-mmusic-mdns-ice-candidates#section-3.1.1 ***/
-   // user_pref("media.peerconnection.enabled", false);
 /* 2002: force WebRTC inside the proxy [FF70+] ***/
 user_pref("media.peerconnection.ice.proxy_only_if_behind_proxy", true);
 /* 2003: force a single network interface for ICE candidates generation [FF42+]
@@ -603,28 +587,18 @@ user_pref("media.eme.enabled", false);
 user_pref("_user.js.parrot", "2400 syntax error: the parrot's kicked the bucket!");
 /* 2402: prevent scripts from moving and resizing open windows ***/
 user_pref("dom.disable_window_move_resize", true);
-/* 2403: block popup windows
- * [SETTING] Privacy & Security>Permissions>Block pop-up windows ***/
-user_pref("dom.disable_open_during_load", true);
-/* 2404: limit events that can cause a popup [SETUP-WEB] ***/
-user_pref("dom.popup_allowed_events", "click dblclick mousedown pointerdown");
 
 /*** [SECTION 2600]: MISCELLANEOUS ***/
 user_pref("_user.js.parrot", "2600 syntax error: the parrot's run down the curtain!");
 /* 2601: prevent accessibility services from accessing your browser [RESTART]
  * [1] https://support.mozilla.org/kb/accessibility-services ***/
 user_pref("accessibility.force_disabled", 1);
-/* 2602: disable sending additional analytics to web servers
- * [1] https://developer.mozilla.org/docs/Web/API/Navigator/sendBeacon ***/
-user_pref("beacon.enabled", false);
 /* 2603: remove temp files opened with an external application
  * [1] https://bugzilla.mozilla.org/302433 ***/
 user_pref("browser.helperApps.deleteTempFileOnExit", true);
-/* 2604: disable page thumbnail collection ***/
-user_pref("browser.pagethumbnails.capturing_disabled", true); // [HIDDEN PREF]
 /* 2606: disable UITour backend so there is no chance that a remote page can use it ***/
 user_pref("browser.uitour.enabled", false);
-user_pref("browser.uitour.url", "");
+   // user_pref("browser.uitour.url", ""); // Defense-in-depth
 /* 2608: reset remote debugging to disabled
  * [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/16222 ***/
 user_pref("devtools.debugger.remote-enabled", false); // [DEFAULT: false]
@@ -648,16 +622,16 @@ user_pref("webchannel.allowObject.urlWhitelist", "");
  * [3] https://cve.mitre.org/cgi-bin/cvekey.cgi?keyword=punycode+firefox
  * [4] https://www.xudongz.com/blog/2017/idn-phishing/ ***/
 user_pref("network.IDN_show_punycode", true);
-/* 2620: enforce PDFJS, disable PDFJS scripting [SETUP-CHROME]
+/* 2620: enforce PDFJS, disable PDFJS scripting
  * This setting controls if the option "Display in Firefox" is available in the setting below
  *   and by effect controls whether PDFs are handled in-browser or externally ("Ask" or "Open With")
- * PROS: pdfjs is lightweight, open source, and more secure/vetted than most
+ * [WHY] pdfjs is lightweight, open source, and secure: the last exploit was June 2015 [1]
- *   Exploits are rare (one serious case in seven years), treated seriously and patched quickly.
  *   It doesn't break "state separation" of browser content (by not sharing with OS, independent apps).
  *   It maintains disk avoidance and application data isolation. It's convenient. You can still save to disk.
- * CONS: You may prefer a different pdf reader for security reasons
+ * [NOTE] JS can still force a pdf to open in-browser by bundling its own code
- * CAVEAT: JS can still force a pdf to open in-browser by bundling its own code
+ * [SETUP-CHROME] You may prefer a different pdf reader for security/workflow reasons
- * [SETTING] General>Applications>Portable Document Format (PDF) ***/
+ * [SETTING] General>Applications>Portable Document Format (PDF)
+ * [1] https://cve.mitre.org/cgi-bin/cvekey.cgi?keyword=pdf.js+firefox ***/
 user_pref("pdfjs.disabled", false); // [DEFAULT: false]
 user_pref("pdfjs.enableScripting", false); // [FF86+]
 /* 2621: disable links launching Windows Store on Windows 8/8.1/10 [WINDOWS] ***/
@@ -717,8 +691,8 @@ user_pref("browser.contentblocking.category", "strict");
 /* 2710: enable state partitioning of service workers [FF96+] ***/
 user_pref("privacy.partition.serviceWorkers", true); // [DEFAULT: true FF105+]
 /* 2720: enable APS (Always Partitioning Storage) ***/
-user_pref("privacy.partition.always_partition_third_party_non_cookie_storage", true); // [FF104+]
+user_pref("privacy.partition.always_partition_third_party_non_cookie_storage", true); // [FF104+] [DEFAULT: true FF109+]
-user_pref("privacy.partition.always_partition_third_party_non_cookie_storage.exempt_sessionstorage", false); // [FF105+]
+user_pref("privacy.partition.always_partition_third_party_non_cookie_storage.exempt_sessionstorage", false); // [FF105+] [DEFAULT: false FF109+]
 
 /*** [SECTION 2800]: SHUTDOWN & SANITIZING ***/
 user_pref("_user.js.parrot", "2800 syntax error: the parrot's bleedin' demised!");
@@ -809,7 +783,6 @@ user_pref("privacy.sanitize.timeSpan", 0);
    1382545 - reduce fingerprinting in Animation API
    1354633 - limit MediaError.message to a whitelist
  FF58+
-    967895 - spoof canvas and enable site permission prompt (FF58)
    1372073 - spoof/block fingerprinting in MediaDevices API (FF59)
       Spoof: enumerate devices as one "Internal Camera" and one "Internal Microphone"
       Block: suppresses the ondevicechange event
@@ -833,6 +806,7 @@ user_pref("privacy.sanitize.timeSpan", 0);
     531915 - use fdlibm's sin, cos and tan in jsmath (FF93, ESR91.1)
    1756280 - enforce navigator.pdfViewerEnabled as true and plugins/mimeTypes as hard-coded values (FF100)
    1692609 - reduce JS timing precision to 16.67ms (previously FF55+ was 100ms) (FF102)
+   1422237 - return "srgb" with color-gamut (FF110)
 ***/
 user_pref("_user.js.parrot", "4500 syntax error: the parrot's popped 'is clogs");
 /* 4501: enable privacy.resistFingerprinting [FF41+]
@@ -867,10 +841,6 @@ user_pref("privacy.resistFingerprinting.letterboxing", true); // [HIDDEN PREF]
    // user_pref("privacy.resistFingerprinting.testGranularityMask", 0);
 /* 4506: set RFP's font visibility level (1402) [FF94+] ***/
    // user_pref("layout.css.font-visibility.resistFingerprinting", 1); // [DEFAULT: 1]
-/* 4507: disable showing about:blank as soon as possible during startup [FF60+]
- * When default true this no longer masks the RFP chrome resizing activity
- * [1] https://bugzilla.mozilla.org/1448423 ***/
-user_pref("browser.startup.blankWindow", false);
 /* 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]
@@ -905,7 +875,7 @@ user_pref("_user.js.parrot", "5000 syntax error: the parrot's taken 'is last bow
  * caches, searches, cookies, localStorage, IndexedDB etc (which you can achieve in normal mode).
  * In fact, PB mode limits or removes the ability to control some of these, and you need to quit
  * Firefox to clear them. PB is best used as a one off window (Menu>New Private Window) to provide
- * a temporary self-contained new session. Close all Private Windows to clear the PB mode session.
+ * a temporary self-contained new session. Close all private windows to clear the PB session.
  * [SETTING] Privacy & Security>History>Custom Settings>Always use private browsing mode
  * [1] https://wiki.mozilla.org/Private_Browsing
  * [2] https://support.mozilla.org/kb/common-myths-about-private-browsing ***/
@@ -925,7 +895,7 @@ user_pref("_user.js.parrot", "5000 syntax error: the parrot's taken 'is last bow
 /* 5005: disable intermediate certificate caching [FF41+] [RESTART]
  * [NOTE] This affects login/cert/key dbs. The effect is all credentials are session-only.
  * Saved logins and passwords are not available. Reset the pref and restart to return them ***/
-   // user_pref("security.nocertdb", true); // [HIDDEN PREF in FF101 or lower]
+   // user_pref("security.nocertdb", true);
 /* 5006: disable favicons in history and bookmarks
  * [NOTE] Stored as data blobs in favicons.sqlite, these don't reveal anything that your
  * actual history (and bookmarks) already do. Your history is more detailed, so
@@ -977,6 +947,12 @@ user_pref("_user.js.parrot", "5000 syntax error: the parrot's taken 'is last bow
    // user_pref("extensions.formautofill.addresses.enabled", false); // [FF55+]
    // user_pref("extensions.formautofill.creditCards.enabled", false); // [FF56+]
    // user_pref("extensions.formautofill.heuristics.enabled", false); // [FF55+]
+/* 5018: limit events that can cause a pop-up ***/
+   // user_pref("dom.popup_allowed_events", "click dblclick mousedown pointerdown");
+/* 5019: disable page thumbnail collection ***/
+   // user_pref("browser.pagethumbnails.capturing_disabled", true); // [HIDDEN PREF]
+/* 5020: disable Windows native notifications and use app notications instead [FF111+] [WINDOWS] ***/
+   // user_pref("alerts.useSystemBackend.windows.notificationserver.enabled", false);
 
 /*** [SECTION 5500]: OPTIONAL HARDENING
    Not recommended. Overriding these can cause breakage and performance issues,
@@ -1038,21 +1014,25 @@ user_pref("privacy.firstparty.isolate", false); // [DEFAULT: false]
  * In FF96+ these are listed in about:compat
  * [1] https://blog.mozilla.org/security/2021/03/23/introducing-smartblock/ ***/
 user_pref("extensions.webcompat.enable_shims", true); // [DEFAULT: true]
-/* 6010: enforce/reset TLS 1.0/1.1 downgrades to session only
+/* 6010: enforce no TLS 1.0/1.1 downgrades
- * [NOTE] In FF97+ the TLS 1.0/1.1 downgrade UX was removed
  * [TEST] https://tls-v1-1.badssl.com:1010/ ***/
 user_pref("security.tls.version.enable-deprecated", false); // [DEFAULT: false]
 /* 6011: enforce disabling of Web Compatibility Reporter [FF56+]
  * Web Compatibility Reporter adds a "Report Site Issue" button to send data to Mozilla
  * [WHY] To prevent wasting Mozilla's time with a custom setup ***/
 user_pref("extensions.webcompat-reporter.enabled", false); // [DEFAULT: false]
-/* 6050: prefsCleaner: reset items removed from arkenfox FF102+ ***/
+/* 6050: prefsCleaner: reset previously active items removed from arkenfox FF102+ ***/
+   // user_pref("beacon.enabled", "");
+   // user_pref("browser.startup.blankWindow", "");
    // user_pref("browser.newtab.preload", "");
    // user_pref("browser.newtabpage.activity-stream.feeds.discoverystreamfeed", "");
    // user_pref("browser.newtabpage.activity-stream.feeds.snippets", "");
+   // user_pref("browser.region.network.url", "");
+   // user_pref("browser.region.update.enabled", "");
    // user_pref("browser.ssl_override_behavior", "");
    // user_pref("devtools.chrome.enabled", "");
    // user_pref("dom.disable_beforeunload", "");
+   // user_pref("dom.disable_open_during_load", "");
    // user_pref("extensions.formautofill.available", "");
    // user_pref("extensions.formautofill.addresses.supported", "");
    // user_pref("extensions.formautofill.creditCards.available", "");
@@ -1082,8 +1062,8 @@ user_pref("_user.js.parrot", "7000 syntax error: the parrot's pushing up daisies
 /* 7003: disable non-modern cipher suites [1]
  * [WHY] Passive fingerprinting. Minimal/non-existent threat of downgrade attacks
  * [1] https://browserleaks.com/ssl ***/
-   // user_pref("security.ssl3.ecdhe_ecdsa_aes_256_sha", false);
+   // user_pref("security.ssl3.ecdhe_ecdsa_aes_128_sha", false); // [DEFAULT: false FF109+]
-   // user_pref("security.ssl3.ecdhe_ecdsa_aes_128_sha", false);
+   // user_pref("security.ssl3.ecdhe_ecdsa_aes_256_sha", false); // [DEFAULT: false FF109+]
    // user_pref("security.ssl3.ecdhe_rsa_aes_128_sha", false);
    // user_pref("security.ssl3.ecdhe_rsa_aes_256_sha", false);
    // user_pref("security.ssl3.rsa_aes_128_gcm_sha256", false); // no PFS
@@ -1097,7 +1077,7 @@ user_pref("_user.js.parrot", "7000 syntax error: the parrot's pushing up daisies
 /* 7005: disable SSL session IDs [FF36+]
  * [WHY] Passive fingerprinting and perf costs. These are session-only
  * and isolated with network partitioning (FF85+) and/or containers ***/
-   // user_pref("security.ssl.disable_session_identifiers", true); // [HIDDEN PREF in FF101 or lower]
+   // user_pref("security.ssl.disable_session_identifiers", true);
 /* 7006: onions
  * [WHY] Firefox doesn't support hidden services. Use Tor Browser ***/
    // user_pref("dom.securecontext.allowlist_onions", true); // [FF97+] 1382359/1744006
@@ -1146,8 +1126,7 @@ user_pref("_user.js.parrot", "7000 syntax error: the parrot's pushing up daisies
    // user_pref("privacy.trackingprotection.cryptomining.enabled", true); // [DEFAULT: true]
    // user_pref("privacy.trackingprotection.fingerprinting.enabled", true); // [DEFAULT: true]
 /* 7017: disable service workers
- * [WHY] Already isolated (FF96+) with TCP (2701) behind a pref (2710)
+ * [WHY] Already isolated with TCP (2701) behind a pref (2710) ***/
- * or blocked with TCP in 3rd parties (FF95 or lower) ***/
    // user_pref("dom.serviceWorkers.enabled", false);
 /* 7018: disable Web Notifications
  * [WHY] Web Notifications are behind a prompt (7002)
@@ -1159,6 +1138,13 @@ user_pref("_user.js.parrot", "7000 syntax error: the parrot's pushing up daisies
  * [NOTE] To remove all subscriptions, reset "dom.push.userAgentID"
  * [1] https://support.mozilla.org/kb/push-notifications-firefox ***/
    // user_pref("dom.push.enabled", false);
+/* 7020: disable WebRTC (Web Real-Time Communication)
+ * [WHY] Firefox desktop uses mDNS hostname obfuscation and the private IP is never exposed until
+ * required in TRUSTED scenarios; i.e. after you grant device (microphone or camera) access
+ * [TEST] https://browserleaks.com/webrtc
+ * [1] https://groups.google.com/g/discuss-webrtc/c/6stQXi72BEU/m/2FwZd24UAQAJ
+ * [2] https://datatracker.ietf.org/doc/html/draft-ietf-mmusic-mdns-ice-candidates#section-3.1.1 ***/
+   // user_pref("media.peerconnection.enabled", false);
 
 /*** [SECTION 8000]: DON'T BOTHER: FINGERPRINTING
    [WHY] They are insufficient to help anti-fingerprinting and do more harm than good
@@ -1198,6 +1184,9 @@ user_pref("browser.newtabpage.activity-stream.asrouter.userprefs.cfr.addons", fa
 user_pref("browser.newtabpage.activity-stream.asrouter.userprefs.cfr.features", false);
 /* 9003: disable What's New toolbar icon [FF69+] ***/
 user_pref("browser.messaging-system.whatsNewPanel.enabled", false);
+/* 9004: disable search terms [FF110+]
+ * [SETTING] Search>Search Bar>Use the address bar for search and navigation>Show search terms instead of URL... ***/
+user_pref("browser.urlbar.showSearchTerms.enabled", false);
 
 /*** [SECTION 9999]: DEPRECATED / REMOVED / LEGACY / RENAMED
    Documentation denoted as [-]. Items deprecated prior to FF91 have been archived at [1]