v112 (#1654)

* updater.sh/prefsCleaner.sh: Check for root and abort

Check if running as root and if any files have the owner/group as root|wheel.
Abort on both.

Should (hopefully) prevent stuff like: https://github.com/arkenfox/user.js/issues/1587
Discussion: https://github.com/arkenfox/user.js/pull/1595

---------

Co-authored-by: Mohammed Anas <triallax@tutanota.com>
Co-authored-by: earthlng <earthlng@users.noreply.github.com>

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 +2,65 @@
 
 ## prefs.js cleaner for Linux/Mac
 ## author: @claustromaniac
-## version: 1.5
+## version: 1.9
 
 ## special thanks to @overdodactyl and @earthlng for a few snippets that I stol..*cough* borrowed from the updater.sh
 
-currdir=$(pwd)
+## DON'T GO HIGHER THAN VERSION x.9 !! ( because of ASCII comparison in update_prefsCleaner() )
+
+# Check if running as root and if any files have the owner/group as root/wheel.
+if [ "${EUID:-"$(id -u)"}" -eq 0 ]; then
+	printf "You shouldn't run this with elevated privileges (such as with doas/sudo).\n"
+	exit 1
+elif [ -n "$(find ./ -user 0 -o -group 0)" ]; then
+	printf 'It looks like this script was previously run with elevated privileges,
+you will need to change ownership of the following files to your user:\n'
+	find . -user 0 -o -group 0
+	exit 1
+fi
+
+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 +72,24 @@ 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 +128,37 @@ 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 "                   ║           v1.9           ║"
 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 +182,5 @@ 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: 5-October-2022
+  Last updated: 27-January-2023
 
   Instructions:
   - [optional] close Firefox and backup your profile
@@ -238,10 +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."

updater.sh

@@ -2,12 +2,23 @@
 
 ## arkenfox user.js updater for macOS and Linux
 
-## version: 3.5
+## version: 3.8
 ## Author: Pat Johnson (@overdodactyl)
 ## Additional contributors: @earthlng, @ema-pe, @claustromaniac, @infinitewarp
 
 ## DON'T GO HIGHER THAN VERSION x.9 !! ( because of ASCII comparison in update_updater() )
 
+# Check if running as root and if any files have the owner/group as root/wheel.
+if [ "${EUID:-"$(id -u)"}" -eq 0 ]; then
+	printf "You shouldn\'t run this with elevated privileges (such as with doas/sudo).\n"
+	exit 1
+elif [ -n "$(find ./ -user 0 -o -group 0)" ]; then
+	printf 'It looks like this script was previously run with elevated privileges,
+you will need to change ownership of the following files to your user:\n'
+	find . -user 0 -o -group 0
+	exit 1
+fi
+
 readonly CURRDIR=$(pwd)
 
 SCRIPT_FILE=$(readlink -f "${BASH_SOURCE[0]}" 2>/dev/null || greadlink -f "${BASH_SOURCE[0]}" 2>/dev/null)

user.js

@@ -1,7 +1,7 @@
 /******
 *    name: arkenfox user.js
-*    date: 5 October 2022
+*    date: 4 May 2023
-* version: 105
+* version: 112
 *     url: https://github.com/arkenfox/user.js
 * license: MIT: https://github.com/arkenfox/user.js/blob/master/LICENSE.txt
 
@@ -61,7 +61,7 @@
   6000: DON'T TOUCH
   7000: DON'T BOTHER
   8000: DON'T BOTHER: FINGERPRINTING
-  9000: PERSONAL
+  9000: NON-PROJECT RELATED
   9999: DEPRECATED / REMOVED / LEGACY / RENAMED
 
 ******/
@@ -78,9 +78,6 @@ user_pref("browser.aboutConfig.showWarning", false);
 
 /*** [SECTION 0100]: STARTUP ***/
 user_pref("_user.js.parrot", "0100 syntax error: the parrot's dead!");
-/* 0101: disable default browser check
- * [SETTING] General>Startup>Always check if Firefox is your default browser ***/
-user_pref("browser.shell.checkDefaultBrowser", false);
 /* 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
@@ -113,13 +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 ***/
@@ -271,7 +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.
@@ -435,7 +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
@@ -480,8 +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
@@ -494,14 +484,14 @@ 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")
  * [SETTING] Privacy & Security>HTTPS-Only Mode (and manage exceptions)
  * [TEST] http://example.com [upgrade]
- * [TEST] http://httpforever.com/ [no upgrade] ***/
+ * [TEST] http://httpforever.com/ | http://http.rip [no upgrade] ***/
 user_pref("dom.security.https_only_mode", true); // [FF76+]
    // user_pref("dom.security.https_only_mode_pbm", true); // [FF80+]
 /* 1245: enable HTTPS-Only mode for local resources [FF77+] ***/
@@ -519,10 +509,6 @@ user_pref("dom.security.https_only_mode_send_http_background_request", false);
  * [1] https://wiki.mozilla.org/Security:Renegotiation
  * [2] https://bugzilla.mozilla.org/1353705 ***/
 user_pref("security.ssl.treat_unsafe_negotiation_as_broken", true);
-/* 1271: control "Add Security Exception" dialog on SSL warnings
- * 0=do neither, 1=pre-populate url, 2=pre-populate url + pre-fetch cert (default)
- * [1] https://github.com/pyllyukko/user.js/issues/210 ***/
-user_pref("browser.ssl_override_behavior", 1);
 /* 1272: display advanced information on Insecure Connection warning pages
  * only works when it's possible to add an exception
  * i.e. it doesn't work for HSTS discrepancies (https://subdomain.preloaded-hsts.badssl.com/)
@@ -571,15 +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+]
@@ -608,38 +585,20 @@ user_pref("media.eme.enabled", false);
 
 /*** [SECTION 2400]: DOM (DOCUMENT OBJECT MODEL) ***/
 user_pref("_user.js.parrot", "2400 syntax error: the parrot's kicked the bucket!");
-/* 2401: disable "Confirm you want to leave" dialog on page close
- * Does not prevent JS leaks of the page close event
- * [1] https://developer.mozilla.org/docs/Web/Events/beforeunload ***/
-user_pref("dom.disable_beforeunload", true);
 /* 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
-/* 2607: disable various developer tools in browser context
- * [SETTING] Devtools>Advanced Settings>Enable browser chrome and add-on debugging toolboxes
- * [1] https://github.com/pyllyukko/user.js/issues/179#issuecomment-246468676 ***/
-user_pref("devtools.chrome.enabled", false);
 /* 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]
@@ -663,16 +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] ***/
@@ -732,8 +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!");
@@ -805,14 +764,12 @@ user_pref("privacy.sanitize.timeSpan", 0);
     418986 - limit window.screen & CSS media queries (FF41)
       [TEST] https://arkenfox.github.io/TZP/tzp.html#screen
    1281949 - spoof screen orientation (FF50)
-   1281963 - hide the contents of navigator.plugins and navigator.mimeTypes (FF50-99)
-      FF53: fixes GetSupportedNames in nsMimeTypeArray and nsPluginArray (1324044)
    1330890 - spoof timezone as UTC0 (FF55)
    1360039 - spoof navigator.hardwareConcurrency as 2 (FF55)
  FF56
    1369303 - spoof/disable performance API
    1333651 - spoof User Agent & Navigator API
-      version: spoofed as ESR (FF102+ this is limited to Android)
+      version: android version spoofed as ESR
       OS: JS spoofed as Windows 10, OS 10.15, Android 10, or Linux | HTTP Headers spoofed as Windows or Android
    1369319 - disable device sensor API
    1369357 - disable site specific zoom
@@ -825,8 +782,7 @@ user_pref("privacy.sanitize.timeSpan", 0);
    1217290 & 1409677 - enable some fingerprinting resistance for WebGL
    1382545 - reduce fingerprinting in Animation API
    1354633 - limit MediaError.message to a whitelist
- FF58-90
+ 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
@@ -847,10 +803,10 @@ user_pref("privacy.sanitize.timeSpan", 0);
    1621433 - randomize canvas (previously FF58+ returned an all-white canvas) (FF78)
    1653987 - limit font visibility to bundled and "Base Fonts" (Windows, Mac, some Linux) (FF80)
    1461454 - spoof smooth=true and powerEfficient=false for supported media in MediaCapabilities (FF82)
- FF91+
     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 capped at 100ms) (FF102)
+   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+]
@@ -885,10 +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]
@@ -923,7 +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 ***/
@@ -943,7 +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
@@ -995,6 +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,
@@ -1049,38 +1007,32 @@ user_pref("network.http.referer.spoofSource", false); // [DEFAULT: false]
  * [1] https://www.squarefree.com/2004/07/01/race-conditions-in-security-dialogs/ ***/
 user_pref("security.dialog_enable_delay", 1000); // [DEFAULT: 1000]
 /* 6008: enforce no First Party Isolation [FF51+]
- * [WARNING] Replaced with network partitioning (FF85+) and TCP (2701),
+ * [WARNING] Replaced with network partitioning (FF85+) and TCP (2701), and enabling FPI
- * and enabling FPI disables those. FPI is no longer maintained ***/
+ * disables those. FPI is no longer maintained except at Tor Project for Tor Browser's config ***/
 user_pref("privacy.firstparty.isolate", false); // [DEFAULT: false]
 /* 6009: enforce SmartBlock shims [FF81+]
  * 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 FF92+ ***/
+/* 6050: prefsCleaner: reset previously active items removed from arkenfox FF102+ ***/
-   // user_pref("browser.urlbar.trimURLs", "");
+   // user_pref("beacon.enabled", "");
-   // user_pref("dom.caches.enabled", "");
+   // user_pref("browser.startup.blankWindow", "");
-   // user_pref("dom.storageManager.enabled", "");
-   // user_pref("dom.storage_access.enabled", "");
-   // user_pref("dom.targetBlankNoOpener.enabled", "");
-   // user_pref("network.cookie.thirdparty.sessionOnly", "");
-   // user_pref("network.cookie.thirdparty.nonsecureSessionOnly", "");
-   // user_pref("privacy.firstparty.isolate.block_post_message", "");
-   // user_pref("privacy.firstparty.isolate.restrict_opener_access", "");
-   // user_pref("privacy.firstparty.isolate.use_site", "");
-   // user_pref("privacy.window.name.update.enabled", "");
-   // user_pref("security.insecure_connection_text.enabled", "");
-/* 6051: prefsCleaner: reset items removed from arkenfox FF102+ ***/
    // 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", "");
@@ -1089,13 +1041,12 @@ user_pref("extensions.webcompat-reporter.enabled", false); // [DEFAULT: false]
 /*** [SECTION 7000]: DON'T BOTHER ***/
 user_pref("_user.js.parrot", "7000 syntax error: the parrot's pushing up daisies!");
 /* 7001: disable APIs
- * Location-Aware Browsing, Full Screen, offline cache (appCache), Virtual Reality
+ * Location-Aware Browsing, Full Screen, offline cache (appCache)
- * [WHY] The API state is easily fingerprintable. Geo and VR are behind prompts (7002).
+ * [WHY] The API state is easily fingerprintable. Geo is behind a prompt (7002).
  * appCache storage capability was removed in FF90. Full screen requires user interaction ***/
    // user_pref("geo.enabled", false);
    // user_pref("full-screen-api.enabled", false);
    // user_pref("browser.cache.offline.enable", false);
-   // user_pref("dom.vr.enabled", false); // [DEFAULT: false FF97+]
 /* 7002: set default permissions
  * Location, Camera, Microphone, Notifications [FF58+] Virtual Reality [FF73+]
  * 0=always ask (default), 1=allow, 2=block
@@ -1111,8 +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
@@ -1126,7 +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
@@ -1143,7 +1094,6 @@ user_pref("_user.js.parrot", "7000 syntax error: the parrot's pushing up daisies
 /* 7010: disable HTTP Alternative Services [FF37+]
  * [WHY] Already isolated with network partitioning (FF85+) ***/
    // user_pref("network.http.altsvc.enabled", false);
-   // user_pref("network.http.altsvc.oe", false); // [DEFAULT: false FF94+]
 /* 7011: disable website control over browser right-click context menu
  * [WHY] Just use Shift-Right-Click ***/
    // user_pref("dom.event.contextmenu.enabled", false);
@@ -1176,8 +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)
@@ -1189,169 +1138,61 @@ 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
    [WARNING] DO NOT USE with RFP. RFP already covers these and they can interfere
 ***/
 user_pref("_user.js.parrot", "8000 syntax error: the parrot's crossed the Jordan");
-/* 8001: disable APIs ***/
+/* 8001: prefsCleaner: reset items useless for anti-fingerprinting ***/
-   // user_pref("device.sensors.enabled", false);
+   // user_pref("browser.display.use_document_fonts", "");
-   // user_pref("dom.enable_performance", false);
+   // user_pref("browser.zoom.siteSpecific", "");
-   // user_pref("dom.enable_resource_timing", false);
+   // user_pref("device.sensors.enabled", "");
-   // user_pref("dom.gamepad.enabled", false);
+   // user_pref("dom.enable_performance", "");
-   // user_pref("dom.netinfo.enabled", false); // [DEFAULT: false NON-ANDROID: false ANDROID FF99+]
+   // user_pref("dom.enable_resource_timing", "");
-   // user_pref("dom.webaudio.enabled", false);
+   // user_pref("dom.gamepad.enabled", "");
-/* 8002: disable other ***/
+   // user_pref("dom.maxHardwareConcurrency", "");
-   // user_pref("browser.display.use_document_fonts", 0);
+   // user_pref("dom.w3c_touch_events.enabled", "");
-   // user_pref("browser.zoom.siteSpecific", false);
+   // user_pref("dom.webaudio.enabled", "");
-   // user_pref("dom.w3c_touch_events.enabled", 0);
+   // user_pref("font.system.whitelist", "");
-   // user_pref("media.navigator.enabled", false);
+   // user_pref("general.appname.override", "");
-   // user_pref("media.ondevicechange.enabled", false);
+   // user_pref("general.appversion.override", "");
-   // user_pref("media.video_stats.enabled", false);
+   // user_pref("general.buildID.override", "");
-   // user_pref("media.webspeech.synth.enabled", false);
+   // user_pref("general.oscpu.override", "");
-   // user_pref("webgl.enable-debug-renderer-info", false);
+   // user_pref("general.platform.override", "");
-/* 8003: spoof ***/
+   // user_pref("general.useragent.override", "");
-   // user_pref("dom.maxHardwareConcurrency", 2);
+   // user_pref("media.navigator.enabled", "");
-   // user_pref("font.system.whitelist", ""); // [HIDDEN PREF]
+   // user_pref("media.ondevicechange.enabled", "");
-   // user_pref("general.appname.override", ""); // [HIDDEN PREF]
+   // user_pref("media.video_stats.enabled", "");
-   // user_pref("general.appversion.override", ""); // [HIDDEN PREF]
+   // user_pref("media.webspeech.synth.enabled", "");
-   // user_pref("general.buildID.override", ""); // [HIDDEN PREF]
+   // user_pref("ui.use_standins_for_native_colors", "");
-   // user_pref("general.oscpu.override", ""); // [HIDDEN PREF]
+   // user_pref("webgl.enable-debug-renderer-info", "");
-   // user_pref("general.platform.override", ""); // [HIDDEN PREF]
-   // user_pref("general.useragent.override", ""); // [HIDDEN PREF]
-   // user_pref("ui.use_standins_for_native_colors", true);
 
-/*** [SECTION 9000]: PERSONAL
+/*** [SECTION 9000]: NON-PROJECT RELATED ***/
-   Non-project related but useful. If any interest you, add them to your overrides
-***/
 user_pref("_user.js.parrot", "9000 syntax error: the parrot's cashed in 'is chips!");
-/* WELCOME & WHAT'S NEW NOTICES ***/
+/* 9001: disable welcome notices ***/
-user_pref("browser.startup.homepage_override.mstone", "ignore"); // master switch
+user_pref("browser.startup.homepage_override.mstone", "ignore");
-   // user_pref("startup.homepage_welcome_url", "");
+/* 9002: disable General>Browsing>Recommend extensions/features as you browse [FF67+] ***/
-   // user_pref("startup.homepage_welcome_url.additional", "");
+user_pref("browser.newtabpage.activity-stream.asrouter.userprefs.cfr.addons", false);
-   // user_pref("startup.homepage_override_url", ""); // What's New page after updates
+user_pref("browser.newtabpage.activity-stream.asrouter.userprefs.cfr.features", false);
-/* WARNINGS ***/
+/* 9003: disable What's New toolbar icon [FF69+] ***/
-   // user_pref("browser.tabs.warnOnClose", false); // [DEFAULT: false FF94+]
+user_pref("browser.messaging-system.whatsNewPanel.enabled", false);
-   // user_pref("browser.tabs.warnOnCloseOtherTabs", false);
+/* 9004: disable search terms [FF110+]
-   // user_pref("browser.tabs.warnOnOpen", false);
+ * [SETTING] Search>Search Bar>Use the address bar for search and navigation>Show search terms instead of URL... ***/
-   // user_pref("browser.warnOnQuitShortcut", false); // [FF94+]
+user_pref("browser.urlbar.showSearchTerms.enabled", false);
-   // user_pref("full-screen-api.warning.delay", 0);
-   // user_pref("full-screen-api.warning.timeout", 0);
-/* UPDATES ***/
-   // user_pref("app.update.auto", false); // [NON-WINDOWS] disable auto app updates
-      // [NOTE] You will still get prompts to update, and should do so in a timely manner
-      // [SETTING] General>Firefox Updates>Check for updates but let you choose to install them
-   // user_pref("browser.search.update", false); // disable search engine updates (e.g. OpenSearch)
-      // [NOTE] This does not affect Mozilla's built-in or Web Extension search engines
-   // user_pref("extensions.update.enabled", false); // disable extension and theme update checks
-   // user_pref("extensions.update.autoUpdateDefault", false); // disable installing extension and theme updates
-      // [SETTING] about:addons>Extensions>[cog-wheel-icon]>Update Add-ons Automatically (toggle)
-   // user_pref("extensions.getAddons.cache.enabled", false); // disable extension metadata (extension detail tab)
-/* APPEARANCE ***/
-   // user_pref("browser.download.autohideButton", false); // [FF57+]
-   // user_pref("toolkit.legacyUserProfileCustomizations.stylesheets", true); // [FF68+] allow userChrome/userContent
-   // user_pref("ui.prefersReducedMotion", 1); // disable chrome animations [FF77+] [RESTART] [HIDDEN PREF]
-      // 0=no-preference, 1=reduce: with RFP this only affects chrome
-   // user_pref("ui.systemUsesDarkTheme", 1); // [FF67+] [HIDDEN PREF]
-      // 0=light, 1=dark: with RFP this only affects chrome
-/* CONTENT BEHAVIOR ***/
-   // user_pref("accessibility.typeaheadfind", true); // enable "Find As You Type"
-   // user_pref("clipboard.autocopy", false); // disable autocopy default [LINUX]
-   // user_pref("layout.spellcheckDefault", 2); // 0=none, 1-multi-line, 2=multi-line & single-line
-/* FIREFOX HOME CONTENT ***/
-   // user_pref("browser.newtabpage.activity-stream.feeds.section.topstories", false); // Recommended by Pocket
-   // user_pref("browser.newtabpage.activity-stream.section.highlights.includePocket", false);
-/* HTML5 MEDIA AUTOPLAY ***/
-   // [NOTE] You can set exceptions under site permissions
-   // user_pref("media.autoplay.default", 5); // [FF63+]
-      // 0=Allow all, 1=Block non-muted media (default), 5=Block all
-      // [SETTING] Privacy & Security>Permissions>Autoplay>Settings>Default for all websites
-   // user_pref("media.autoplay.blocking_policy", 2); // disable autoplay if you interacted with the site [FF78+]
-      // 0=sticky (default), 1=transient, 2=user
-      // [1] https://support.mozilla.org/questions/1293231 // links to Autoplay Policy Documentation (PDF)
-/* UX BEHAVIOR ***/
-   // user_pref("browser.backspace_action", 2); // 0=previous page, 1=scroll up, 2=do nothing
-   // user_pref("browser.quitShortcut.disabled", true); // disable Ctrl-Q quit shortcut [LINUX] [MAC] [FF87+]
-   // user_pref("browser.tabs.closeWindowWithLastTab", false);
-   // user_pref("browser.tabs.loadBookmarksInTabs", true); // open bookmarks in a new tab [FF57+]
-   // user_pref("browser.urlbar.decodeURLsOnCopy", true); // see bugzilla 1320061 [FF53+]
-   // user_pref("general.autoScroll", false); // middle-click enabling auto-scrolling [DEFAULT: false on Linux]
-   // user_pref("ui.key.menuAccessKey", 0); // disable alt key toggling the menu bar [RESTART]
-   // user_pref("view_source.tab", false); // view "page/selection source" in a new window [FF68+]
-/* UX FEATURES ***/
-user_pref("browser.messaging-system.whatsNewPanel.enabled", false); // What's New toolbar icon [FF69+]
-   // user_pref("extensions.pocket.enabled", false); // Pocket Account [FF46+]
-   // user_pref("extensions.screenshots.disabled", true); // [FF55+]
-   // user_pref("identity.fxaccounts.enabled", false); // Firefox Accounts & Sync [FF60+] [RESTART]
-   // user_pref("reader.parse-on-load.enabled", false); // Reader View
-/* OTHER ***/
-   // user_pref("browser.bookmarks.max_backups", 2);
-user_pref("browser.newtabpage.activity-stream.asrouter.userprefs.cfr.addons", false); // disable CFR [FF67+]
-      // [SETTING] General>Browsing>Recommend extensions as you browse
-user_pref("browser.newtabpage.activity-stream.asrouter.userprefs.cfr.features", false); // disable CFR [FF67+]
-      // [SETTING] General>Browsing>Recommend features as you browse
-   // user_pref("browser.sessionstore.interval", 30000); // minimum interval between session save operations
-      // Increasing this may help on older machines and some websites, as well as reducing writes (1304389)
-   // user_pref("network.manage-offline-status", false); // see bugzilla 620472
-   // user_pref("xpinstall.signatures.required", false); // enforced extension signing (Nightly/ESR)
 
 /*** [SECTION 9999]: DEPRECATED / REMOVED / LEGACY / RENAMED
    Documentation denoted as [-]. Items deprecated prior to FF91 have been archived at [1]
    [1] https://github.com/arkenfox/user.js/issues/123
 ***/
 user_pref("_user.js.parrot", "9999 syntax error: the parrot's shuffled off 'is mortal coil!");
-/* ESR91.x still uses all the following prefs
-// [NOTE] replace the * with a slash in the line above to re-enable them
-// FF93
-// 7003: disable non-modern cipher suites
-   // [-] https://bugzilla.mozilla.org/1724072
-   // user_pref("security.ssl3.rsa_des_ede3_sha", false); // 3DES
-// FF94
-// 1402: limit font visibility (Windows, Mac, some Linux) [FF79+] - replaced by new 1402
-   // [-] https://bugzilla.mozilla.org/1715507
-   // user_pref("layout.css.font-visibility.level", 1);
-// FF95
-// 0807: disable location bar contextual suggestions [FF92+] - replaced by new 0807
-   // [-] https://bugzilla.mozilla.org/1735976
-user_pref("browser.urlbar.suggest.quicksuggest", false);
-// FF96
-// 0302: disable auto-INSTALLING Firefox updates via a background service + hide the setting [FF90+] [WINDOWS]
-   // [SETTING] General>Firefox Updates>Automatically install updates>When Firefox is not running
-   // [1] https://support.mozilla.org/kb/enable-background-updates-firefox-windows
-   // [-] https://bugzilla.mozilla.org/1738983
-user_pref("app.update.background.scheduling.enabled", false);
-// FF97
-// 7006: onions - replaced by new 7006 "allowlist"
-   // [-] https://bugzilla.mozilla.org/1744006
-   // user_pref("dom.securecontext.whitelist_onions", true); // 1382359
-// FF99
-// 6003: enforce CSP (Content Security Policy)
-   // [1] https://developer.mozilla.org/docs/Web/HTTP/CSP
-   // [-] https://bugzilla.mozilla.org/1754301
-user_pref("security.csp.enable", true); // [DEFAULT: true]
-// FF100
-// 7009: disable HTTP2 - replaced by network.http.http2* prefs
-   // [WHY] Passive fingerprinting. ~50% of sites use HTTP2 [1]
-   // [1] https://w3techs.com/technologies/details/ce-http2/all/all
-   // [-] https://bugzilla.mozilla.org/1752621
-   // user_pref("network.http.spdy.enabled", false);
-   // user_pref("network.http.spdy.enabled.deps", false);
-   // user_pref("network.http.spdy.enabled.http2", false);
-   // user_pref("network.http.spdy.websockets", false); // [FF65+]
-// FF102
-   // 0901: set when Firefox should prompt for the primary password
-   // 0=once per session (default), 1=every time it's needed, 2=after n minutes (0902)
-   // [-] https://bugzilla.mozilla.org/1767099
-user_pref("security.ask_for_password", 2);
-   // 0902: set how long in minutes Firefox should remember the primary password (0901)
-   // [-] https://bugzilla.mozilla.org/1767099
-user_pref("security.password_lifetime", 5); // [DEFAULT: 30]
-   // 6007: enforce Local Storage Next Generation (LSNG) [FF65+]
-   // [-] https://bugzilla.mozilla.org/1764696
-user_pref("dom.storage.next_gen", true); // [DEFAULT: true FF92+]
-// ***/
-
 /* ESR102.x still uses all the following prefs
 // [NOTE] replace the * with a slash in the line above to re-enable them
 // FF103
@@ -1362,7 +1203,7 @@ user_pref("dom.storage.next_gen", true); // [DEFAULT: true FF92+]
 user_pref("network.cookie.lifetimePolicy", 2);
 // 6012: disable SHA-1 certificates
    // [-] https://bugzilla.mozilla.org/1766687
-user_pref("security.pki.sha1_enforcement_level", 1); // [DEFAULT: 1 FF102+]
+   // user_pref("security.pki.sha1_enforcement_level", 1); // [DEFAULT: 1]
 // ***/
 
 /* END: internal custom pref to test for syntax errors ***/