83 final

warnings always come after notes
Update troubleshooter.js
2025-09-01 09:28:31 +02:00 · 2020-11-22 17:05:34 +00:00 · 2020-11-21 01:49:19 +00:00 · 2020-11-17 19:17:59 +00:00 · 2020-11-13 01:03:29 +00:00 · 2020-11-13 00:55:45 +00:00
16 changed files with 413 additions and 511 deletions
--- a/.github/ISSUE_TEMPLATE/troubleshooting-help.md
+++ b/.github/ISSUE_TEMPLATE/troubleshooting-help.md
@ -8,16 +8,15 @@ assignees: ''
 ---

 Before you proceed...
-  - Issues will be closed as invalid if you do not [troubleshoot](https://github.com/ghacksuserjs/ghacks-user.js/wiki/1.4-Troubleshooting), including
+  - Issues will be closed as invalid if you do not [troubleshoot](https://github.com/arkenfox/user.js/wiki/1.4-Troubleshooting), including
     - confirming the problem is caused by the `user.js`
     - searching the `[Setup` tags in the `user.js`
  - Search the GitHub repository. The information you need is most likely here already.
  - Note: We do not support forks

 See also:
-  - Extension breakage due to prefs [issue 391](https://github.com/ghacksuserjs/ghacks-user.js/issues/391)
-  - Prefs vs Recommended Extensions: Co-Existance+Enhancement | Conflicts [issue 350](https://github.com/ghacksuserjs/ghacks-user.js/issues/350)
-  - The extension CSP header modification game [issue 664](https://github.com/ghacksuserjs/ghacks-user.js/issues/664)
+  - Extension breakage due to prefs [issue 391](https://github.com/arkenfox/user.js/issues/391)
+  - Prefs vs Recommended Extensions: Co-Existance+Enhancement | Conflicts [issue 350](https://github.com/arkenfox/user.js/issues/350)

 If you still need help, help us help you by providing relevant information:
  - browser version
--- a/.github/ISSUE_TEMPLATE/user-js.md
+++ b/.github/ISSUE_TEMPLATE/user-js.md
@ -9,7 +9,7 @@ assignees: ''

 We value feedback in general, but we value feedback from informed users more. There is no need for you to be an expert to participate (most of us aren't), but we hope that you at least understand our decisions before questioning them. We discuss all changes openly, and we do not make changes lightly. So, if you don't understand why we decided to add/remove/change a certain pref, search the repo. The answer is most certainly here.

-If some change we made took you by surprise (in the wrong way), remember that keeping track of changes is your responsibility. Watch the repo, read the [changelogs](https://github.com/ghacksuserjs/ghacks-user.js/issues?utf8=✓&q=is%3Aissue+label%3Achangelog), compare [releases](https://github.com/ghacksuserjs/ghacks-user.js/releases) as you update your copy of user.js, or use any other method you prefer.
+If some change we made took you by surprise (in the wrong way), remember that keeping track of changes is your responsibility. Watch the repo, read the [changelogs](https://github.com/arkenfox/user.js/issues?utf8=✓&q=is%3Aissue+label%3Achangelog), compare [releases](https://github.com/arkenfox/user.js/releases) as you update your copy of user.js, or use any other method you prefer.

 Clear all of this when you're ready to type.

--- a/LICENSE.txt
+++ b/LICENSE.txt
@ -1,6 +1,6 @@
 MIT License

-Copyright (c) 2017 ghacksuserjs
+Copyright (c) 2020 arkenfox

 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
--- a/README.md
+++ b/README.md
@ -1,27 +1,27 @@
-### ![][b] user.js
-A `user.js` is a configuration file that can control hundreds of Firefox settings. For a more technical breakdown and explanation, you can read more on the [overview](https://github.com/ghacksuserjs/ghacks-user.js/wiki/1.1-Overview) wiki page.
+### 🟪  user.js
+A `user.js` is a configuration file that can control hundreds of Firefox settings. For a more technical breakdown and explanation, you can read more on the [overview](https://github.com/arkenfox/user.js/wiki/1.1-Overview) wiki page.

-### ![][b] ghacks user.js
-The `ghacks 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).
+### 🟩  the arkenfox user.js

-Everyone, experts included, should at least read the [implementation](https://github.com/ghacksuserjs/ghacks-user.js/wiki/1.3-Implementation) wiki page, as it contains important information regarding a few `ghacks user.js` settings.
+[![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
+
+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 [implementation](https://github.com/arkenfox/user.js/wiki/1.3-Implementation) wiki page, as it contains important information regarding a few `user.js` settings.

 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://www.torproject.org/about/torusers.html.en) calls for it, or for accessing hidden services. 

-Also be aware that this `user.js` is made specifically for desktop Firefox. Using it as-is in other Gecko-based browsers can be counterproductive, especially in the Tor Browser.
+Also be aware that the `arkenfox user.js` is made specifically for desktop Firefox. Using it as-is in other Gecko-based browsers can be counterproductive, especially in the Tor Browser.

-Sitemap: [Releases](https://github.com/ghacksuserjs/ghacks-user.js/releases), [changelogs](https://github.com/ghacksuserjs/ghacks-user.js/issues?utf8=%E2%9C%93&q=is%3Aissue+label%3Achangelog), [Wiki](https://github.com/ghacksuserjs/ghacks-user.js/wiki), [stickies](https://github.com/ghacksuserjs/ghacks-user.js/issues?q=is%3Aissue+is%3Aopen+label%3A%22sticky+topic%22). [diffs](https://github.com/ghacksuserjs/ghacks-user.js/issues?q=is%3Aissue+label%3Adiffs)
+### 🟧  sitemap

-### ![][b] acknowledgments
-Literally thousands of sources, references and suggestions. That said...
+ - [Releases](https://github.com/arkenfox/user.js/releases)
+ - [changelogs](https://github.com/arkenfox/user.js/issues?utf8=%E2%9C%93&q=is%3Aissue+label%3Achangelog)
+ - [Wiki](https://github.com/arkenfox/user.js/wiki)
+ - [stickies](https://github.com/arkenfox/user.js/issues?q=is%3Aissue+is%3Aopen+label%3A%22sticky+topic%22)
+ - [diffs](https://github.com/arkenfox/user.js/issues?q=is%3Aissue+label%3Adiffs)

-* Martin Brinkmann at [ghacks](https://www.ghacks.net/) <sup>1</sup>
-* The ghacks community and commentators
-* [12bytes](https://12bytes.org/articles/tech/firefox/firefoxgecko-configuration-guide-for-privacy-and-performance-buffs)
-   * The 12bytes article now uses this user.js and supplements it with an additional JS hosted at [Codeberg](https://codeberg.org/12bytes.org/Firefox-user.js-supplement)
+### 🟥  acknowledgments
+Literally thousands of sources, references and suggestions. Many thanks, and much appreciated.

-<sup>1</sup> The ghacks user.js was an independent project by [Thorin-Oakenpants](https://github.com/Thorin-Oakenpants) started in early 2015 and was [first published](https://www.ghacks.net/2015/08/18/a-comprehensive-list-of-firefox-privacy-and-security-settings/) at ghacks in August 2015. With Martin Brinkmann's blessing, it will keep the ghacks name.

-### ![][b] [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
-
-[b]: /wikipiki/bullet01.png
--- a/_config.yml
+++ b/_config.yml
@ -1,3 +1,3 @@
 theme: jekyll-theme-midnight
-title: ghacks-user.js
+title: user.js
 description: An ongoing comprehensive user.js template for configuring and hardening Firefox privacy, security and anti-fingerprinting
--- a/prefsCleaner.bat
+++ b/prefsCleaner.bat
@ -3,7 +3,7 @@ TITLE prefs.js cleaner

 REM ### prefs.js cleaner for Windows
 REM ## author: @claustromaniac
-REM ## version: 2.2
+REM ## version: 2.3

 CD /D "%~dp0"

@ -13,7 +13,7 @@ ECHO:
 ECHO                 ########################################
 ECHO                 ####  prefs.js cleaner for Windows  ####
 ECHO                 ####        by claustromaniac       ####
-ECHO                 ####              v2.2              ####
+ECHO                 ####              v2.3              ####
 ECHO                 ########################################
 ECHO:
 CALL :message "This script should be run from your Firefox profile directory."
@ -101,7 +101,7 @@ ECHO        add-ons disabled. Then, restart it again normally, and see if the
 CALL :message "     problems were solved."
 ECHO:
 CALL :message "If you are able to identify the cause of your issues, please bring it up"
-ECHO   on ghacks-user.js GitHub repository.
+ECHO   on arkenfox user.js GitHub repository.
 ECHO:
 ECHO:
 PAUSE
--- a/prefsCleaner.sh
+++ b/prefsCleaner.sh
@ -2,7 +2,7 @@

 ## prefs.js cleaner for Linux/Mac
 ## author: @claustromaniac
-## version: 1.2
+## version: 1.3

 ## special thanks to @overdodactyl and @earthlng for a few snippets that I stol..*cough* borrowed from the updater.sh

@ -58,7 +58,7 @@ echo -e "\n\n"
 echo "                   ╔══════════════════════════╗"
 echo "                   ║     prefs.js cleaner     ║"
 echo "                   ║    by claustromaniac     ║"
-echo "                   ║           v1.2           ║"
+echo "                   ║           v1.3           ║"
 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."
@ -90,7 +90,7 @@ select option in Start Help Exit; do
 			echo "4. Rename or copy your latest backup to prefs.js."
 			echo "5. Run Firefox and see if you notice anything wrong with it."
 			echo "6. If you do notice something wrong, especially with your extensions, and/or with the UI, go to about:support, and restart Firefox with add-ons disabled. Then, restart it again normally, and see if the problems were solved."
-			echo -e "If you are able to identify the cause of your issues, please bring it up on ghacks-user.js GitHub repository.\n"
+			echo -e "If you are able to identify the cause of your issues, please bring it up on the arkenfox user.js GitHub repository.\n"
 			;;
 		Exit)
 			fQuit 0
--- a/scratchpad-scripts/ghacks-clear-FF68inclusive-[RFP-alternatives].js
+++ b/scratchpad-scripts/ghacks-clear-FF68inclusive-[RFP-alternatives].js
@ -1,10 +1,12 @@
 /***
- This will reset the preferences that are under sections 4600 & 4700 in the ghacks user.js
- up to and including Firefox/ESR 68. These are the prefs that are no longer necessary,
- or they conflict with, privacy.resistFingerprinting if you have that enabled.
+ Version: up to and including FF/ESR78
+
+ This will reset the preferences that are under sections 4600 & 4700 in the
+ arkenfox user.js. These are the prefs that are no longer necessary, or they
+ conflict with, privacy.resistFingerprinting if you have that enabled.

 For instructions see:
- https://github.com/ghacksuserjs/ghacks-user.js/wiki/3.1-Resetting-Inactive-Prefs-[Scripts]
+ https://github.com/arkenfox/user.js/wiki/3.1-Resetting-Inactive-Prefs-[Scripts]
 ***/
 
 (function() {
@ -24,6 +26,8 @@
    'webgl.enable-debug-renderer-info',
    'dom.w3c_pointer_events.enabled',
    'ui.use_standins_for_native_colors',
+    'ui.systemUsesDarkTheme',
+    'ui.prefersReducedMotion',
    /* section 4700 */
    'general.useragent.override',
    'general.buildID.override',
--- a/scratchpad-scripts/ghacks-clear-FF68inclusive-[deprecated].js
+++ b/scratchpad-scripts/ghacks-clear-FF68inclusive-[deprecated].js
@ -1,17 +1,44 @@
 /***
+ Version: up to and including FF/ESR78
+
 This will reset the preferences that have been deprecated by Mozilla
- and used in the ghacks user.js up to and including Firefox/ESR 68
+ and used in the arkenfox user.js

 It is in reverse order, so feel free to remove sections that do not apply

 For instructions see:
- https://github.com/ghacksuserjs/ghacks-user.js/wiki/3.1-Resetting-Inactive-Prefs-[Scripts]
+ https://github.com/arkenfox/user.js/wiki/3.1-Resetting-Inactive-Prefs-[Scripts]
 ***/

 (function() {
  let ops = [
    /* deprecated */

+    /* 78 */
+    'media.autoplay.enabled.user-gestures-needed',
+    'toolkit.cosmeticAnimations.enabled',
+    /* 77 */
+    'browser.urlbar.oneOffSearches',
+    'browser.tabs.remote.allowLinkedWebInFileUriProcess',
+    /* 76 */
+    'extensions.blocklist.url',
+    /* 74 */
+    'geo.wifi.uri',
+    'geo.wifi.logging.enabled',
+    'privacy.userContext.longPressBehavior',
+    'webgl.disable-extensions',
+    /* 72 */
+    'browser.newtabpage.activity-stream.telemetry.ping.endpoint',
+    'toolkit.telemetry.hybridContent.enabled',
+    'dom.indexedDB.enabled',
+    /* 71 */
+    'devtools.webide.enabled',
+    'devtools.webide.autoinstallADBExtension',
+    'offline-apps.allow_by_default',
+    /* 69 */
+    'gfx.downloadable_fonts.woff2.enabled',
+    'plugins.click_to_play',
+    'media.autoplay.allow-muted',
    /* 68 */
    'browser.newtabpage.activity-stream.disableSnippets',
    'browser.aboutHomeSnippets.updateUrl',
--- a/scratchpad-scripts/arkenfox-clear-removed.js
+++ b/scratchpad-scripts/arkenfox-clear-removed.js
@ -1,15 +1,15 @@
 /***
- This will reset the preferences that have been removed completely from the ghacks user.js.
+ This will reset the preferences that have been removed completely from the arkenfox user.js.

- Last updated: 12-April-2020
+ Last updated: 02-Nov-2020

 For instructions see:
- https://github.com/ghacksuserjs/ghacks-user.js/wiki/3.1-Resetting-Inactive-Prefs-[Scripts]
+ https://github.com/arkenfox/user.js/wiki/3.1-Resetting-Inactive-Prefs-[Scripts]
 ***/
 
 (function() {
  let ops = [
-    /* removed in ghacks user.js v52-57 */
+    /* removed in arkenfox user.js v52-57 */
    /* 52-alpha */
    'browser.search.reset.enabled',
    'browser.search.reset.whitelist',
@ -221,6 +221,14 @@
    /* 75-beta */
    'browser.search.geoip.url',
    'browser.search.region',
+    /* 79-beta */
+    'browser.urlbar.usepreloadedtopurls.enabled',
+    /* 82-beta */
+    'dom.IntersectionObserver.enabled',
+    'extensions.screenshots.upload-disabled',
+    'privacy.partition.network_state',
+    'security.ssl3.dhe_rsa_aes_128_sha',
+    'security.ssl3.dhe_rsa_aes_256_sha',
    /* reset parrot: check your open about:config after running the script */
    '_user.js.parrot'
  ]
--- a/scratchpad-scripts/troubleshooter.js
+++ b/scratchpad-scripts/troubleshooter.js
@ -1,5 +1,5 @@

-/*** ghacks-user.js troubleshooter.js v1.6.1 ***/
+/*** arkenfox user.js troubleshooter.js v1.6.2 ***/

 (function() {

@ -17,7 +17,6 @@

    /* Storage + Cache */
    'browser.cache.offline.enable',
-    'dom.indexedDB.enabled',
    'dom.storage.enabled',
    'browser.storageManager.enabled',
    'dom.storageManager.enabled',
@ -60,8 +59,8 @@

    /* Audio + Video */
    'dom.webaudio.enabled',
-    'media.autoplay.enabled',
    'media.autoplay.default', // FF63+
+    'media.autoplay.blocking_policy', // FF78+

    /* Forms */
    'browser.formfill.enable',
@ -102,6 +101,7 @@
    'network.protocol-handler.external.ms-windows-store',
    'privacy.trackingprotection.enabled',
    'security.data_uri.block_toplevel_data_uri_navigations',
+    'privacy.window.name.update.enabled', // FF82+

    'last.one.without.comma'
  ]
--- a/updater.bat
+++ b/updater.bat
@ -1,12 +1,12 @@
@ECHO OFF & SETLOCAL EnableDelayedExpansion
-TITLE ghacks user.js updater
+TITLE arkenfox user.js updater

-REM ## ghacks-user.js updater for Windows
+REM ## arkenfox user.js updater for Windows
 REM ## author: @claustromaniac
-REM ## version: 4.10
-REM ## instructions: https://github.com/ghacksuserjs/ghacks-user.js/wiki/3.3-Updater-Scripts
+REM ## version: 4.12
+REM ## instructions: https://github.com/arkenfox/user.js/wiki/3.3-Updater-Scripts

-SET v=4.10
+SET v=4.12

 VERIFY ON
 CD /D "%~dp0"
@ -52,7 +52,7 @@ IF DEFINED _updateb (
 		REM Uncomment the next line and comment out the PowerShell call for testing.
 		REM COPY /B /Y "!_myname!.bat" "[updated]!_myname!.bat" >nul
 		(
-			PowerShell -Command "(New-Object Net.WebClient).DownloadFile('https://raw.githubusercontent.com/ghacksuserjs/ghacks-user.js/master/updater.bat', '[updated]!_myname!.bat')"
+			PowerShell -Command "(New-Object Net.WebClient).DownloadFile('https://raw.githubusercontent.com/arkenfox/user.js/master/updater.bat', '[updated]!_myname!.bat')"
 		) >nul 2>&1
 		IF EXIST "[updated]!_myname!.bat" (
 			START /min CMD /C "[updated]!_myname!.bat" !_myparams!
@ -100,7 +100,10 @@ IF NOT EXIST user.js (
 	)
 	:exitloop
 	IF NOT "!_name!"=="" (
-		IF /I NOT "!_name!"=="!_name:ghacks=!" (
+		SET "_tempvar="
+		IF /I NOT "!_name!"=="!_name:ghacks=!" SET _tempvar=1
+		IF /I NOT "!_name!"=="!_name:arkenfox=!" SET _tempvar=1
+		IF !_tempvar! EQU 1 (
 			CALL :message "!_name! !_version:~2!,!_date!"
 		) ELSE (CALL :message "Current user.js version not recognised.")
 	) ELSE (CALL :message "Current user.js version not recognised.")
@ -108,7 +111,7 @@ IF NOT EXIST user.js (
 ECHO:
 IF NOT DEFINED _ua (
 	CALL :message "This batch should be run from your Firefox profile directory."
-	ECHO:  It will download the latest version of ghacks user.js from github and then
+	ECHO:  It will download the latest version of arkenfox user.js from github and then
 	CALL :message "append any of your own changes from user-overrides.js to it."
 	CALL :message "Visit the wiki for more detailed information."
 	ECHO:
@ -130,7 +133,7 @@ IF DEFINED _log (
 IF EXIST user.js.new (DEL /F "user.js.new")
 CALL :message "Retrieving latest user.js file from github repository..."
 (
-	PowerShell -Command "(New-Object Net.WebClient).DownloadFile('https://raw.githubusercontent.com/ghacksuserjs/ghacks-user.js/master/user.js', 'user.js.new')"
+	PowerShell -Command "(New-Object Net.WebClient).DownloadFile('https://raw.githubusercontent.com/arkenfox/user.js/master/user.js', 'user.js.new')"
 ) >nul 2>&1
 IF EXIST user.js.new (
 	IF DEFINED _rfpalts (
--- a/updater.sh
+++ b/updater.sh
@ -1,8 +1,8 @@
 #!/usr/bin/env bash

-## ghacks-user.js updater for macOS and Linux
+## arkenfox user.js updater for macOS and Linux

-## version: 2.6
+## version: 2.8
 ## Author: Pat Johnson (@overdodactyl)
 ## Additional contributors: @earthlng, @ema-pe, @claustromaniac

@ -11,7 +11,7 @@
 readonly CURRDIR=$(pwd)

 sfp=$(readlink -f "${BASH_SOURCE[0]}" 2>/dev/null || greadlink -f "${BASH_SOURCE[0]}" 2>/dev/null)
-if [ -z "$sfp" ]; then sfp=${BASH_SOURCE[0]}; fi
+[ -z "$sfp" ] && sfp=${BASH_SOURCE[0]}
 readonly SCRIPT_DIR=$(dirname "${sfp}")


@ -42,27 +42,27 @@ ESR=false
 # Download method priority: curl -> wget
 DOWNLOAD_METHOD=''
 if [[ $(command -v 'curl') ]]; then
-  DOWNLOAD_METHOD='curl'
+  DOWNLOAD_METHOD='curl --max-redirs 3 -so'
 elif [[ $(command -v 'wget') ]]; then
-  DOWNLOAD_METHOD='wget'
+  DOWNLOAD_METHOD='wget --max-redirect 3 --quiet -O'
 else
  echo -e "${RED}This script requires curl or wget.\nProcess aborted${NC}"
-  exit 0
+  exit 1
 fi


 show_banner () {
-  echo -e "${BBLUE}\n"
-  echo '                ############################################################################'
-  echo '                ####                                                                    ####'
-  echo '                ####                           ghacks user.js                           ####'
-  echo '                ####       Hardening the Privacy and Security Settings of Firefox       ####'
-  echo '                ####           Maintained by @Thorin-Oakenpants and @earthlng           ####'
-  echo '                ####            Updater for macOS and Linux by @overdodactyl            ####'
-  echo '                ####                                                                    ####'
-  echo '                ############################################################################'
+  echo -e "${BBLUE}
+                ############################################################################
+                ####                                                                    ####
+                ####                          arkenfox user.js                          ####
+                ####       Hardening the Privacy and Security Settings of Firefox       ####
+                ####           Maintained by @Thorin-Oakenpants and @earthlng           ####
+                ####            Updater for macOS and Linux by @overdodactyl            ####
+                ####                                                                    ####
+                ############################################################################"
  echo -e "${NC}\n"
-  echo -e "Documentation for this script is available here: ${CYAN}https://github.com/ghacksuserjs/ghacks-user.js/wiki/3.3-Updater-Scripts${NC}\n"
+  echo -e "Documentation for this script is available here: ${CYAN}https://github.com/arkenfox/user.js/wiki/3.3-Updater-Scripts${NC}\n"
 }

 #########################
@ -70,66 +70,50 @@ show_banner () {
 #########################

 usage() {
-  echo -e "${BLUE}\nUsage: $0 [-h] [-p PROFILE] [-u] [-d] [-s] [-n] [-b] [-c] [-v] [-r] [-e] [-o OVERRIDE]\n${NC}" 1>&2  # Echo usage string to standard error
-  echo 'Optional Arguments:'
-  echo -e "\t-h,\t\t Show this help message and exit."
-  echo -e "\t-p PROFILE,\t Path to your Firefox profile (if different than the dir of this script)"
-  echo -e "\t\t\t IMPORTANT: if the path include spaces, wrap the entire argument in quotes."
-  echo -e "\t-l, \t\t Choose your Firefox profile from a list"
-  echo -e "\t-u,\t\t Update updater.sh and execute silently.  Do not seek confirmation."
-  echo -e "\t-d,\t\t Do not look for updates to updater.sh."
-  echo -e "\t-s,\t\t Silently update user.js.  Do not seek confirmation."
-  echo -e "\t-b,\t\t Only keep one backup of each file."
-  echo -e "\t-c,\t\t Create a diff file comparing old and new user.js within userjs_diffs. "
-  echo -e "\t-o OVERRIDE,\t Filename or path to overrides file (if different than user-overrides.js)."
-  echo -e "\t\t\t If used with -p, paths should be relative to PROFILE or absolute paths"
-  echo -e "\t\t\t If given a directory, all files inside will be appended recursively."
-  echo -e "\t\t\t You can pass multiple files or directories by passing a comma separated list."
-  echo -e "\t\t\t\t Note: If a directory is given, only files inside ending in the extension .js are appended"
-  echo -e "\t\t\t\t IMPORTANT: do not add spaces between files/paths.  Ex: -o file1.js,file2.js,dir1"
-  echo -e "\t\t\t\t IMPORTANT: if any files/paths include spaces, wrap the entire argument in quotes."
-  echo -e "\t\t\t\t\t Ex: -o \"override folder\" "
-  echo -e "\t-n,\t\t Do not append any overrides, even if user-overrides.js exists."
-  echo -e "\t-v,\t\t Open the resulting user.js file."
-  echo -e "\t-r,\t\t Only download user.js to a temporary file and open it."
-    echo -e "\t-e,\t\t Activate ESR related preferences."
-  echo -e
-  echo 'Deprecated Arguments (they still work for now):'
-  echo -e "\t-donotupdate,\t Use instead -d"
-  echo -e "\t-update,\t Use instead -u"
-  echo -e
+  echo
+  echo -e "${BLUE}Usage: $0 [-bcdehlnrsuv] [-p PROFILE] [-o OVERRIDE]${NC}" 1>&2  # Echo usage string to standard error
+  echo -e "
+Optional Arguments:
+    -h           Show this help message and exit.
+    -p PROFILE   Path to your Firefox profile (if different than the dir of this script)
+                 IMPORTANT: If the path contains spaces, wrap the entire argument in quotes.
+    -l           Choose your Firefox profile from a list
+    -u           Update updater.sh and execute silently.  Do not seek confirmation.
+    -d           Do not look for updates to updater.sh.
+    -s           Silently update user.js.  Do not seek confirmation.
+    -b           Only keep one backup of each file.
+    -c           Create a diff file comparing old and new user.js within userjs_diffs.
+    -o OVERRIDE  Filename or path to overrides file (if different than user-overrides.js).
+                 If used with -p, paths should be relative to PROFILE or absolute paths
+                 If given a directory, all files inside will be appended recursively.
+                 You can pass multiple files or directories by passing a comma separated list.
+                     Note: If a directory is given, only files inside ending in the extension .js are appended
+                     IMPORTANT: Do not add spaces between files/paths.  Ex: -o file1.js,file2.js,dir1
+                     IMPORTANT: If any file/path contains spaces, wrap the entire argument in quotes.
+                         Ex: -o \"override folder\"
+    -n           Do not append any overrides, even if user-overrides.js exists.
+    -v           Open the resulting user.js file.
+    -r           Only download user.js to a temporary file and open it.
+    -e           Activate ESR related preferences."
+  echo
  exit 1
 }

-legacy_argument () {
-  echo -e "${ORANGE}\nWarning: command line arguments have changed."
-  echo -e "$1 has been deprecated and may not work in the future.\n"
-  echo -e "Please view the new options using the -h argument.${NC}"
-}
-
 #########################
 #     File Handling     #
 #########################

 # Download files
-download_file () {
-  declare -r url=$1
+download_file () { # expects URL as argument ($1)
  declare -r tf=$(mktemp)
-  local dlcmd=''

-  if [ $DOWNLOAD_METHOD = 'curl' ]; then
-    dlcmd="curl -o $tf"
-  else
-    dlcmd="wget -O $tf"
-  fi
-
-  $dlcmd "${url}" &>/dev/null && echo "$tf" || echo '' # return the temp-filename (or empty string on error)
+  $DOWNLOAD_METHOD "${tf}" "$1" && echo "$tf" || echo '' # return the temp-filename or empty string on error
 }

-open_file () { #expects one argument: file_path
+open_file () { # expects one argument: file_path
  if [ "$(uname)" == 'Darwin' ]; then
    open "$1"
-  elif [ "$(expr substr $(uname -s) 1 5)" == "Linux" ]; then
+  elif [ "$(uname -s | cut -c -5)" == "Linux" ]; then
    xdg-open "$1"
  else
    echo -e "${RED}Error: Sorry, opening files is not supported for your OS.${NC}"
@ -204,23 +188,22 @@ get_updater_version () {
 # Update updater.sh
 # Default: Check for update, if available, ask user if they want to execute it
 # Args:
-#   -donotupdate: New version will not be looked for and update will not occur
-#   -update: Check for update, if available, execute without asking
+#   -d: New version will not be looked for and update will not occur
+#   -u: Check for update, if available, execute without asking
 update_updater () {
  if [ $UPDATE = 'no' ]; then
    return 0 # User signified not to check for updates
  fi

-  declare -r tmpfile=$(download_file 'https://raw.githubusercontent.com/ghacksuserjs/ghacks-user.js/master/updater.sh')
+  declare -r tmpfile="$(download_file 'https://raw.githubusercontent.com/arkenfox/user.js/master/updater.sh')"
+  [ -z "${tmpfile}" ] && echo -e "${RED}Error! Could not download updater.sh${NC}" && return 1 # check if download failed

  if [[ $(get_updater_version "${SCRIPT_DIR}/updater.sh") < $(get_updater_version "${tmpfile}") ]]; then
    if [ $UPDATE = 'check' ]; then
      echo -e "There is a newer version of updater.sh available. ${RED}Update and execute Y/N?${NC}"
      read -p "" -n 1 -r
      echo -e "\n\n"
-      if [[ $REPLY =~ ^[Nn]$ ]]; then
-        return 0 # Update available, but user chooses not to update
-      fi
+      [[ $REPLY =~ ^[Nn]$ ]] && return 0 # Update available, but user chooses not to update
    fi
  else
    return 0 # No update available
@ -228,7 +211,7 @@ update_updater () {
  mv "${tmpfile}" "${SCRIPT_DIR}/updater.sh"
  chmod u+x "${SCRIPT_DIR}/updater.sh"
  "${SCRIPT_DIR}/updater.sh" "$@" -d
-  exit 1
+  exit 0
 }


@ -238,11 +221,7 @@ update_updater () {

 # Returns version number of a user.js file
 get_userjs_version () {
-  if [ -e $1 ]; then
-    echo "$(sed -n '4p' "$1")"
-  else
-    echo "Not detected."
-  fi
+  [ -e $1 ] && echo "$(sed -n '4p' "$1")" || echo "Not detected."
 }

 add_override () {
@ -252,7 +231,7 @@ add_override () {
    cat "$input" >> user.js
    echo -e "Status: ${GREEN}Override file appended:${NC} ${input}"
  elif [ -d "$input" ]; then
-    FSAVEIFS=$IFS
+    SAVEIFS=$IFS
    IFS=$'\n\b' # Set IFS
    FILES="${input}"/*.js
    for f in $FILES
@ -271,12 +250,13 @@ remove_comments () { # expects 2 arguments: from-file and to-file

 # Applies latest version of user.js and any custom overrides
 update_userjs () {
-  declare -r newfile=$(download_file 'https://raw.githubusercontent.com/ghacksuserjs/ghacks-user.js/master/user.js')
+  declare -r newfile="$(download_file 'https://raw.githubusercontent.com/arkenfox/user.js/master/user.js')"
+  [ -z "${newfile}" ] && echo -e "${RED}Error! Could not download user.js${NC}" && return 1 # check if download failed

-  echo 'Please observe the following information:'
-  echo -e "\tFirefox profile:  ${ORANGE}$(pwd)${NC}"
-  echo -e "\tAvailable online: ${ORANGE}$(get_userjs_version $newfile)${NC}"
-  echo -e "\tCurrently using:  ${ORANGE}$(get_userjs_version user.js)\n${NC}\n"
+  echo -e "Please observe the following information:
+    Firefox profile:  ${ORANGE}$(pwd)${NC}
+    Available online: ${ORANGE}$(get_userjs_version $newfile)${NC}
+    Currently using:  ${ORANGE}$(get_userjs_version user.js)${NC}\n\n"

  if [ $CONFIRM = 'yes' ]; then
    echo -e "This script will update to the latest user.js file and append any custom configurations from user-overrides.js. ${RED}Continue Y/N? ${NC}"
@ -298,9 +278,7 @@ update_userjs () {
  # backup user.js
  mkdir -p userjs_backups
  local bakname="userjs_backups/user.js.backup.$(date +"%Y-%m-%d_%H%M")"
-  if [ $BACKUP = 'single' ]; then
-    bakname='userjs_backups/user.js.backup'
-  fi
+  [ $BACKUP = 'single' ] && bakname='userjs_backups/user.js.backup'
  cp user.js "$bakname" &>/dev/null

  mv "${newfile}" user.js
@ -336,14 +314,12 @@ update_userjs () {
      echo -e "Status: ${GREEN}A diff file was created:${NC} ${PWD}/${diffname}"
    else
      echo -e "Warning: ${ORANGE}Your new user.js file appears to be identical.  No diff file was created.${NC}"
-      if [ $BACKUP = 'multiple' ]; then
-        rm $bakname &>/dev/null
-      fi
+      [ $BACKUP = 'multiple' ] && rm $bakname &>/dev/null
    fi
    rm $past_nocomments $current_nocomments $pastuserjs &>/dev/null
  fi

-  if [ "$VIEW" = true ]; then open_file "${PWD}/user.js"; fi
+  [ "$VIEW" = true ] && open_file "${PWD}/user.js"
 }

 #########################
@ -351,16 +327,9 @@ update_userjs () {
 #########################

 if [ $# != 0 ]; then
-  readonly legacy_lc=$(echo $1 | tr '[A-Z]' '[a-z]')
  # Display usage if first argument is -help or --help
  if [ $1 = '--help' ] || [ $1 = '-help' ]; then
    usage
-  elif [ $legacy_lc = '-donotupdate' ]; then
-    UPDATE='no'
-    legacy_argument $1
-  elif [ $legacy_lc = '-update' ]; then
-    UPDATE='yes'
-    legacy_argument $1
  else
    while getopts ":hp:ludsno:bcvre" opt; do
      case $opt in
@ -401,11 +370,12 @@ if [ $# != 0 ]; then
          ESR=true
          ;;
        r)
-          tfile=$(download_file 'https://raw.githubusercontent.com/ghacksuserjs/ghacks-user.js/master/user.js')
+          tfile="$(download_file 'https://raw.githubusercontent.com/arkenfox/user.js/master/user.js')"
+          [ -z "${tfile}" ] && echo -e "${RED}Error! Could not download user.js${NC}" && exit 1 # check if download failed
          mv $tfile "${tfile}.js"
          echo -e "${ORANGE}Warning: user.js was saved to temporary file ${tfile}.js${NC}"
          open_file "${tfile}.js"
-          exit 1
+          exit 0
          ;;
        \?)
          echo -e "${RED}\n Error! Invalid option: -$OPTARG${NC}" >&2
@ -413,7 +383,7 @@ if [ $# != 0 ]; then
          ;;
        :)
          echo -e "${RED}Error! Option -$OPTARG requires an argument.${NC}" >&2
-          exit 1
+          exit 2
          ;;
      esac
    done
--- a/user.js
+++ b/user.js
@ -1,45 +1,42 @@
 /******
-* name: ghacks user.js
-* date: 20 Jul 2020
-* version 78-beta
-* authors: v52+ github | v51- www.ghacks.net
-* url: https://github.com/ghacksuserjs/ghacks-user.js
-* license: MIT: https://github.com/ghacksuserjs/ghacks-user.js/blob/master/LICENSE.txt
-
-* releases: These are end-of-stable-life-cycle legacy archives.
-            *Always* use the master branch user.js for a current up-to-date version
-       url: https://github.com/ghacksuserjs/ghacks-user.js/releases
+* name: arkenfox user.js
+* date: 22 Nov 2020
+* version 83
+* url: https://github.com/arkenfox/user.js
+* license: MIT: https://github.com/arkenfox/user.js/blob/master/LICENSE.txt

 * README:

-  0. Consider using Tor Browser if it meets your needs or fits your threat model better
-     * https://www.torproject.org/about/torusers.html.en
-  1. READ the full README
-     * https://github.com/ghacksuserjs/ghacks-user.js/blob/master/README.md
-  2. READ this
-     * https://github.com/ghacksuserjs/ghacks-user.js/wiki/1.3-Implementation
-  3. If you skipped steps 1 and 2 above (shame on you), then here is the absolute minimum
-     * Real time binary checks with Google services are disabled (0412)
-     * You will still get prompts to update Firefox, but auto-installing them is disabled (0302a)
-     * Some user data is erased on close (section 2800). Change this to suit your needs
-     * EACH RELEASE check:
-         - 4600s: reset prefs made redundant due to privacy.resistFingerprinting (RPF)
-                  or enable them as an alternative to RFP (or some of them for ESR users)
-         - 9999s: reset deprecated prefs in about:config or enable the relevant section for ESR
-     * Site breakage WILL happen
-         - There are often trade-offs and conflicts between Security vs Privacy vs Anti-Fingerprinting
-           and these need to be balanced against Functionality & Convenience & Breakage
-     * You will need to make changes, and to troubleshoot at times (choose wisely, there is always a trade-off).
-       While not 100% definitive, search for "[SETUP". If required, add each pref to your overrides section at
-       default values (or comment them out and reset them in about:config). Here are the main ones:
+  1. Consider using Tor Browser if it meets your needs or fits your threat model better
+       * https://www.torproject.org/about/torusers.html.en
+  2. Required reading: Overview, Backing Up, Implementing, and Maintenance entries
+       * https://github.com/arkenfox/user.js/wiki
+  3. If you skipped step 2, return to step 2
+  4. Make changes
+       * There are often trade-offs and conflicts between security vs privacy vs anti-fingerprinting
+         and these need to be balanced against functionality & convenience & breakage
+       * Some site breakage and unintended consequences will happen. Everyone's experience will differ
+         e.g. some user data is erased on close (section 2800), change this to suit your needs
+       * While not 100% definitive, search for "[SETUP" tags
+       * Take the wiki link in step 2 and read the Troubleshooting entry
+  5. Some tag info
       [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-CHROME] changes how Firefox itself behaves (i.e. not directly website related)
           [SETUP-PERF] may impact performance
-         [SETUP-HARDEN] maybe you should consider using the Tor Browser
-     * [WARNING] tags are extra special and used sparingly, so heed them
-  4. BACKUP your profile folder before implementing (and/or test in a new/cloned profile)
-  5. KEEP UP TO DATE: https://github.com/ghacksuserjs/ghacks-user.js/wiki#small_orange_diamond-maintenance
+              [WARNING] used sparingly, heed them
+
+* RELEASES: https://github.com/arkenfox/user.js/releases
+
+  * It is best to use the arkenfox release that is optimized for and matches your Firefox version
+  * EVERYONE: each release
+    - run prefsCleaner or reset deprecated prefs (9999s) and prefs made redundant by RPF (4600s)
+    - re-enable section 4600 if you don't use RFP
+    ESR78
+    - If you are not using arkenfox v78... (not a definitive list)
+      - 1401: document fonts is inactive as it is now covered by RFP in FF80+
+      - 4600: some prefs may apply even if you use RFP (currently none apply as of FF84)
+      - 9999: switch the appropriate deprecated section(s) back on

 * INDEX:

@ -69,7 +66,7 @@
  4000: FPI (FIRST PARTY ISOLATION)
  4500: RFP (RESIST FINGERPRINTING)
  4600: RFP ALTERNATIVES
-  4700: RFP ALTERNATIVES (NAVIGATOR / USER AGENT (UA) SPOOFING)
+  4700: RFP ALTERNATIVES (USER AGENT SPOOFING)
  5000: PERSONAL
  9999: DEPRECATED / REMOVED / LEGACY / RENAMED

@ -117,7 +114,7 @@ user_pref("browser.newtabpage.activity-stream.telemetry", false);
 * Runs code received from a server (aka Remote Code Execution) and sends information back to a metrics server
 * [1] https://abouthome-snippets-service.readthedocs.io/ ***/
 user_pref("browser.newtabpage.activity-stream.feeds.snippets", false);
-user_pref("browser.newtabpage.activity-stream.asrouter.providers.snippets", "");
+user_pref("browser.newtabpage.activity-stream.asrouter.providers.snippets", "{}");
 /* 0105c: disable Activity Stream Top Stories, Pocket-based and/or sponsored content ***/
 user_pref("browser.newtabpage.activity-stream.feeds.section.topstories", false);
 user_pref("browser.newtabpage.activity-stream.section.highlights.includePocket", false);
@ -161,10 +158,13 @@ user_pref("geo.provider.network.url", "https://location.services.mozilla.com/v1/
 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]
-/* 0206: disable geographically specific results/search engines e.g. "browser.search.*.US"
- * i.e. ignore all of Mozilla's various search engines in multiple locales ***/
-user_pref("browser.search.geoSpecificDefaults", false);
-user_pref("browser.search.geoSpecificDefaults.url", "");
+/* 0207: 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+]
+/* 0208: set search region
+ * [NOTE] May not be hidden if Firefox has changed your settings due to your region (see 0207) ***/
+   // user_pref("browser.search.region", "US"); // [HIDDEN PREF]

 /** LANGUAGE / LOCALE ***/
 /* 0210: set preferred language for displaying web pages
@ -175,13 +175,6 @@ user_pref("intl.accept_languages", "en-US, en");
 * [1] https://bugzilla.mozilla.org/867501
 * [2] https://bugzilla.mozilla.org/1629630 ***/
 user_pref("javascript.use_us_english_locale", true); // [HIDDEN PREF]
-/* 0212: enforce fallback text encoding to match en-US
- * When the content or server doesn't declare a charset the browser will
- * fallback to the "Current locale" based on your application language
- * [SETTING] General>Language and Appearance>Fonts and Colors>Advanced>Text Encoding for Legacy Content (FF72-)
- * [TEST] https://hsivonen.com/test/moz/check-charset.htm
- * [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/20025 ***/
-user_pref("intl.charset.fallback.override", "windows-1252");

 /*** [SECTION 0300]: QUIET FOX
     Starting in user.js v67, we only disable the auto-INSTALL of Firefox. You still get prompts
@ -207,8 +200,7 @@ user_pref("app.update.auto", false);
 * when false, extension detail tabs will have no description ***/
   // user_pref("extensions.getAddons.cache.enabled", false);
 /* 0308: disable search engine updates (e.g. OpenSearch)
- * [NOTE] This does not affect Mozilla's built-in or Web Extension search engines
- * [SETTING] General>Firefox Updates>Automatically update search engines (FF72-) ***/
+ * [NOTE] This does not affect Mozilla's built-in or Web Extension search engines ***/
 user_pref("browser.search.update", false);
 /* 0309: disable sending Flash crash reports ***/
 user_pref("dom.ipc.plugins.flash.subprocess.crashreporter.enabled", false);
@ -346,20 +338,16 @@ user_pref("extensions.systemAddon.update.url", ""); // [FF44+]
 /* 0506: disable PingCentre telemetry (used in several System Add-ons) [FF57+]
 * Currently blocked by 'datareporting.healthreport.uploadEnabled' (see 0340) ***/
 user_pref("browser.ping-centre.telemetry", false);
-/* 0515: disable Screenshots
- * alternatively in FF60+, disable uploading to the Screenshots server
- * [1] https://github.com/mozilla-services/screenshots
- * [2] https://www.ghacks.net/2017/05/28/firefox-screenshots-integrated-in-firefox-nightly/ ***/
+/* 0515: disable Screenshots ***/
   // user_pref("extensions.screenshots.disabled", true); // [FF55+]
-   // user_pref("extensions.screenshots.upload-disabled", true); // [FF60+]
 /* 0517: disable Form Autofill
 * [NOTE] Stored data is NOT secure (uses a JSON file)
 * [NOTE] Heuristics controls Form Autofill on forms without @autocomplete attributes
- * [SETTING] Privacy & Security>Forms and Autofill>Autofill addresses (FF74+)
- * [1] https://wiki.mozilla.org/Firefox/Features/Form_Autofill
- * [2] https://www.ghacks.net/2017/05/24/firefoxs-new-form-autofill-is-awesome/ ***/
+ * [SETTING] Privacy & Security>Forms and Autofill>Autofill addresses
+ * [1] https://wiki.mozilla.org/Firefox/Features/Form_Autofill ***/
 user_pref("extensions.formautofill.addresses.enabled", false); // [FF55+]
 user_pref("extensions.formautofill.available", "off"); // [FF56+]
+user_pref("extensions.formautofill.creditCards.available", false); // [FF57+]
 user_pref("extensions.formautofill.creditCards.enabled", false); // [FF56+]
 user_pref("extensions.formautofill.heuristics.enabled", false); // [FF55+]
 /* 0518: disable Web Compatibility Reporter [FF56+]
@ -372,33 +360,32 @@ user_pref("_user.js.parrot", "0600 syntax error: the parrot's no more!");
 * [1] https://developer.mozilla.org/docs/Web/HTTP/Link_prefetching_FAQ ***/
 user_pref("network.prefetch-next", false);
 /* 0602: disable DNS prefetching
- * [1] https://www.ghacks.net/2013/04/27/firefox-prefetching-what-you-need-to-know/
- * [2] https://developer.mozilla.org/docs/Web/HTTP/Headers/X-DNS-Prefetch-Control ***/
+ * [1] https://developer.mozilla.org/docs/Web/HTTP/Headers/X-DNS-Prefetch-Control ***/
 user_pref("network.dns.disablePrefetch", true);
-user_pref("network.dns.disablePrefetchFromHTTPS", true); // [HIDDEN PREF ESR] [DEFAULT: true FF70+]
+user_pref("network.dns.disablePrefetchFromHTTPS", true); // [DEFAULT: true]
 /* 0603: disable predictor / prefetching ***/
 user_pref("network.predictor.enabled", false);
 user_pref("network.predictor.enable-prefetch", false); // [FF48+]
 /* 0605: disable link-mouseover opening connection to linked server
- * [1] https://news.slashdot.org/story/15/08/14/2321202/how-to-quash-firefoxs-silent-requests
- * [2] https://www.ghacks.net/2015/08/16/block-firefox-from-connecting-to-sites-when-you-hover-over-links/ ***/
+ * [1] https://news.slashdot.org/story/15/08/14/2321202/how-to-quash-firefoxs-silent-requests ***/
 user_pref("network.http.speculative-parallel-limit", 0);
-/* 0606: disable "Hyperlink Auditing" (click tracking) and enforce same host in case
+/* 0606: enforce no "Hyperlink Auditing" (click tracking)
 * [1] https://www.bleepingcomputer.com/news/software/major-browsers-to-prevent-disabling-of-click-tracking-privacy-risk/ ***/
 user_pref("browser.send_pings", false); // [DEFAULT: false]
-user_pref("browser.send_pings.require_same_host", true);
+user_pref("browser.send_pings.require_same_host", true); // defense-in-depth

 /*** [SECTION 0700]: HTTP* / TCP/IP / DNS / PROXY / SOCKS etc ***/
 user_pref("_user.js.parrot", "0700 syntax error: the parrot's given up the ghost!");
 /* 0701: disable IPv6
- * IPv6 can be abused, especially regarding MAC addresses. They also do not play nice
- * with VPNs. That's even assuming your ISP and/or router and/or website can handle it.
+ * IPv6 can be abused, especially with MAC addresses, and they do not play nice with VPNs. That's
+ * even assuming your ISP and/or router and/or website can handle it. Sites will fall back to IPv4
 * [STATS] Firefox telemetry (June 2020) shows only 5% of all connections are IPv6
 * [NOTE] This is just 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.
+ * [NOTE] PHP defaults to IPv6 with "localhost". Use "php -S 127.0.0.1:PORT"
 * [TEST] https://ipleak.org/
- * [1] https://github.com/ghacksuserjs/ghacks-user.js/issues/437#issuecomment-403740626
+ * [1] https://github.com/arkenfox/user.js/issues/437#issuecomment-403740626
 * [2] https://www.internetsociety.org/tag/ipv6-security/ (see Myths 2,4,5,6) ***/
 user_pref("network.dns.disableIPv6", true);
 /* 0702: disable HTTP2
@ -428,8 +415,7 @@ user_pref("network.http.altsvc.oe", false);
 * as a remote Tor node will handle the DNS request
 * [1] https://trac.torproject.org/projects/tor/wiki/doc/TorifyHOWTO/WebBrowsers ***/
 user_pref("network.proxy.socks_remote_dns", true);
-/* 0708: disable FTP [FF60+]
- * [1] https://www.ghacks.net/2018/02/20/firefox-60-with-new-preference-to-disable-ftp/ ***/
+/* 0708: disable FTP [FF60+] ***/
   // user_pref("network.ftp.enabled", false);
 /* 0709: disable using UNC (Uniform Naming Convention) paths [FF61+]
 * [SETUP-CHROME] Can break extensions for profiles on network shares
@ -444,11 +430,6 @@ user_pref("network.file.disable_unc_paths", true); // [HIDDEN PREF]
 * [4] https://en.wikipedia.org/wiki/GIO_(software) ***/
 user_pref("network.gio.supported-protocols", ""); // [HIDDEN PREF]

-/*** [SECTION 0709]: HOTFIX for FF77, FIXED in FF78 ***/
-/* 0709: disabling UNC can cause extension storage to fail
- * [1] https://github.com/ghacksuserjs/ghacks-user.js/issues/923 ***/
-user_pref("network.file.disable_unc_paths", false); // [HIDDEN PREF]
-
 /*** [SECTION 0800]: LOCATION BAR / SEARCH BAR / SUGGESTIONS / HISTORY / FORMS
     Change items 0850 and above to suit for privacy vs convenience and functionality. Consider
     your environment (no unwanted eyeballs), your device (restricted access), your device's
@ -490,9 +471,6 @@ user_pref("layout.css.visited_links_enabled", false);
 * [SETTING] Search>Provide search suggestions | Show search suggestions in address bar results ***/
 user_pref("browser.search.suggest.enabled", false);
 user_pref("browser.urlbar.suggest.searches", false);
-/* 0809: disable location bar suggesting "preloaded" top websites [FF54+]
- * [1] https://bugzilla.mozilla.org/1211726 ***/
-user_pref("browser.urlbar.usepreloadedtopurls.enabled", false);
 /* 0810: disable location bar making speculative connections [FF56+]
 * [1] https://bugzilla.mozilla.org/1348275 ***/
 user_pref("browser.urlbar.speculativeConnect.enabled", false);
@ -519,7 +497,7 @@ user_pref("browser.urlbar.dnsResolveSingleWordsAfterSearch", 0);
 * [1] https://support.mozilla.org/en-US/kb/address-bar-autocomplete-firefox#w_url-autocomplete ***/
   // user_pref("browser.urlbar.autoFill", false);
 /* 0860: disable search and form history
- * [SETUP-WEB] Be aware thet autocomplete form data can be read by third parties, see [1] [2]
+ * [SETUP-WEB] Be aware that autocomplete form data can be read by third parties, see [1] [2]
 * [NOTE] We also clear formdata on exit (see 2803)
 * [SETTING] Privacy & Security>History>Custom Settings>Remember search and form history
 * [1] https://blog.mindedsecurity.com/2011/10/autocompleteagain.html
@ -543,20 +521,21 @@ user_pref("_user.js.parrot", "0900 syntax error: the parrot's expired!");
 * [NOTE] This does not clear any passwords already saved
 * [SETTING] Privacy & Security>Logins and Passwords>Ask to save logins and passwords for websites ***/
   // user_pref("signon.rememberSignons", false);
-/* 0902: use a master password
+/* 0902: use a primary password
 * There are no preferences for this. It is all handled internally.
- * [SETTING] Privacy & Security>Logins and Passwords>Use a master password
- * [1] https://support.mozilla.org/kb/use-master-password-protect-stored-logins ***/
-/* 0903: set how often Firefox should ask for the master password
+ * [SETTING] Privacy & Security>Logins and Passwords>Use a Primary Password
+ * [1] https://support.mozilla.org/kb/use-primary-password-protect-stored-logins-and-pas ***/
+/* 0903: set how often Firefox should ask for the primary password
 * 0=the first time (default), 1=every time it's needed, 2=every n minutes (see 0904) ***/
 user_pref("security.ask_for_password", 2);
-/* 0904: set how often in minutes Firefox should ask for the master password (see 0903)
+/* 0904: set how often in minutes Firefox should ask for the primary password (see 0903)
 * in minutes, default is 30 ***/
 user_pref("security.password_lifetime", 5);
 /* 0905: disable auto-filling username & password form fields
 * can leak in cross-site forms *and* be spoofed
 * [NOTE] Username & password is still available when you enter the field
- * [SETTING] Privacy & Security>Logins and Passwords>Autofill logins and passwords ***/
+ * [SETTING] Privacy & Security>Logins and Passwords>Autofill logins and passwords
+ * [1] https://freedom-to-tinker.com/2017/12/27/no-boundaries-for-user-identities-web-trackers-exploit-browser-login-managers/ ***/
 user_pref("signon.autofillForms", false);
 /* 0909: disable formless login capture for Password Manager [FF51+] ***/
 user_pref("signon.formlessCapture.enabled", false);
@ -564,8 +543,7 @@ user_pref("signon.formlessCapture.enabled", false);
 * hardens against potential credentials phishing
 * 0=don't allow sub-resources to open HTTP authentication credentials dialogs
 * 1=don't allow cross-origin sub-resources to open HTTP authentication credentials dialogs
- * 2=allow sub-resources to open HTTP authentication credentials dialogs (default)
- * [1] https://www.fxsitecompat.com/en-CA/docs/2015/http-auth-dialog-can-no-longer-be-triggered-by-cross-origin-resources/ ***/
+ * 2=allow sub-resources to open HTTP authentication credentials dialogs (default) ***/
 user_pref("network.auth.subresource-http-auth-allow", 1);

 /*** [SECTION 1000]: CACHE / SESSION (RE)STORE / FAVICONS
@ -582,7 +560,7 @@ user_pref("network.auth.subresource-http-auth-allow", 1);
     [2] https://robertheaton.com/2014/01/20/cookieless-user-tracking-for-douchebags/
     [3] https://www.grepular.com/Preventing_Web_Tracking_via_the_Browser_Cache
     [4] https://medium.com/@stoically/enhance-your-privacy-in-firefox-with-temporary-containers-33925cd6cd21
-     [5] https://github.com/ghacksuserjs/ghacks-user.js/wiki/4.2.4-Header-Editor
+     [5] https://github.com/arkenfox/user.js/wiki/4.2.4-Header-Editor
 ***/
 user_pref("_user.js.parrot", "1000 syntax error: the parrot's gone to meet 'is maker!");
 /** CACHE ***/
@ -592,17 +570,18 @@ user_pref("_user.js.parrot", "1000 syntax error: the parrot's gone to meet 'is m
 * [NOTE] We also clear cache on exiting Firefox (see 2803) ***/
 user_pref("browser.cache.disk.enable", false);
 /* 1003: disable memory cache
-/* capacity: -1=determine dynamically (default), 0=none, n=memory capacity in kilobytes ***/
+ * capacity: -1=determine dynamically (default), 0=none, n=memory capacity in kibibytes ***/
   // user_pref("browser.cache.memory.enable", false);
-   // user_pref("browser.cache.memory.capacity", 0); // [HIDDEN PREF ESR]
+   // user_pref("browser.cache.memory.capacity", 0);
 /* 1006: disable permissions manager from writing to disk [RESTART]
 * [NOTE] This means any permission changes are session only
 * [1] https://bugzilla.mozilla.org/967812 ***/
   // user_pref("permissions.memory_only", true); // [HIDDEN PREF]
 /* 1007: disable media cache from writing to disk in Private Browsing
- * [NOTE] MSE (Media Source Extensions) are already stored in-memory in PB */
+ * [NOTE] MSE (Media Source Extensions) are already stored in-memory in PB
+ * [SETUP-WEB] ESR78: playback might break on subsequent loading (1650281) ***/
 user_pref("browser.privatebrowsing.forceMediaMemoryCache", true); // [FF75+]
-user_pref("media.memory_cache_max_size", 16384);
+user_pref("media.memory_cache_max_size", 65536);

 /** SESSIONS & SESSION RESTORE ***/
 /* 1020: exclude "Undo Closed Tabs" in Session Restore ***/
@ -665,7 +644,7 @@ user_pref("security.ssl.require_safe_negotiation", true);
 * [STATS] Firefox telemetry (June 2020) shows only 0.16% of SSL handshakes use 1.0 or 1.1
 * [WARNING] Leave these at default, otherwise you alter your TLS fingerprint.
 * [1] https://www.ssllabs.com/ssl-pulse/ ***/
-   // user_pref("security.tls.version.min", 3); // [DEFAULT: 3 FF78+]
+   // user_pref("security.tls.version.min", 3); // [DEFAULT: 3]
   // user_pref("security.tls.version.max", 4);
 /* 1203: enforce TLS 1.0 and 1.1 downgrades as session only */
 user_pref("security.tls.version.enable-deprecated", false);
@ -739,7 +718,7 @@ user_pref("security.family_safety.mode", 0);
 user_pref("security.cert_pinning.enforcement_level", 2);

 /** MIXED CONTENT ***/
-/* 1240: disable insecure active content on https pages
+/* 1240: enforce no insecure active content on https pages
 * [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/21323 ***/
 user_pref("security.mixed_content.block_active_content", true); // [DEFAULT: true]
 /* 1241: disable insecure passive content (such as images) on https pages [SETUP-WEB] ***/
@ -747,10 +726,15 @@ user_pref("security.mixed_content.block_display_content", true);
 /* 1243: block unencrypted requests from Flash on encrypted pages to mitigate MitM attacks [FF59+]
 * [1] https://bugzilla.mozilla.org/1190623 ***/
 user_pref("security.mixed_content.block_object_subrequest", true);
-/* 1244: enable https-only-mode [FF76+]
- * [NOTE] This is experimental
- * [1] https://bugzilla.mozilla.org/1613063 */
+/* 1244: enable HTTPS-Only mode [FF76+]
+ * When "https_only_mode" (all windows) is true, "https_only_mode_pbm" (private windows only) is ignored
+ * [WARNING] This is experimental [1] and you can't set exceptions if FPI is enabled [2] (fixed in FF83)
+ * [SETTING] to add site exceptions: Page Info>Permissions>Use insecure HTTP (FF80+)
+ * [SETTING] Privacy & Security>HTTPS-Only Mode
+ * [1] https://bugzilla.mozilla.org/1613063 [META]
+ * [2] https://bugzilla.mozilla.org/1647829 ***/
   // user_pref("dom.security.https_only_mode", true); // [FF76+]
+   // user_pref("dom.security.https_only_mode_pbm", true); // [FF80+]
   // user_pref("dom.security.https_only_mode.upgrade_local", true); // [FF77+]

 /** CIPHERS [WARNING: do not meddle with your cipher suite: see the section 1200 intro]
@ -765,10 +749,6 @@ user_pref("security.mixed_content.block_object_subrequest", true);
 * [2] https://en.wikipedia.org/wiki/Meet-in-the-middle_attack
 * [3] https://www-archive.mozilla.org/projects/security/pki/nss/ssl/fips-ssl-ciphersuites.html ***/
   // user_pref("security.ssl3.rsa_des_ede3_sha", false);
-/* 1263: disable DHE (Diffie-Hellman Key Exchange)
- * [1] https://www.eff.org/deeplinks/2015/10/how-to-protect-yourself-from-nsa-attacks-1024-bit-DH ***/
-   // user_pref("security.ssl3.dhe_rsa_aes_128_sha", false); // [DEFAULT: false FF78+]
-   // user_pref("security.ssl3.dhe_rsa_aes_256_sha", false); // [DEFAULT: false FF78+]
 /* 1264: disable the remaining non-modern cipher suites as of FF78 (in order of preferred by FF) ***/
   // user_pref("security.ssl3.ecdhe_ecdsa_aes_256_sha", false);
   // user_pref("security.ssl3.ecdhe_ecdsa_aes_128_sha", false);
@ -795,16 +775,16 @@ user_pref("browser.ssl_override_behavior", 1);
 * [TEST] https://expired.badssl.com/ ***/
 user_pref("browser.xul.error_pages.expert_bad_cert", true);
 /* 1273: display "insecure" icon and "Not Secure" text on HTTP sites ***/
-user_pref("security.insecure_connection_icon.enabled", true); // [FF59+] [DEFAULT: true FF70+]
+   // user_pref("security.insecure_connection_icon.enabled", true); // [FF59+] [DEFAULT: true]
 user_pref("security.insecure_connection_text.enabled", true); // [FF60+]

 /*** [SECTION 1400]: FONTS ***/
 user_pref("_user.js.parrot", "1400 syntax error: the parrot's bereft of life!");
 /* 1401: disable websites choosing fonts (0=block, 1=allow)
 * This can limit most (but not all) JS font enumeration which is a high entropy fingerprinting vector
- * [SETUP-WEB] Can break some PDFs (missing text). Limiting to default fonts can "uglify" the web
+ * [WARNING] **DO NOT USE**: in FF80+ RFP covers this, and non-RFP users should use font vis (4618)
 * [SETTING] General>Language and Appearance>Fonts & Colors>Advanced>Allow pages to choose... ***/
-user_pref("browser.display.use_document_fonts", 0);
+   // user_pref("browser.display.use_document_fonts", 0);
 /* 1403: disable icon fonts (glyphs) and local fallback rendering
 * [1] https://bugzilla.mozilla.org/789788
 * [2] https://gitlab.torproject.org/legacy/trac/-/issues/8455 ***/
@ -819,9 +799,9 @@ user_pref("gfx.font_rendering.opentype_svg.enabled", false);
 * [2] https://en.wikipedia.org/wiki/Graphite_(SIL) ***/
 user_pref("gfx.font_rendering.graphite.enabled", false);
 /* 1409: limit system font exposure to a whitelist [FF52+] [RESTART]
- * If the whitelist is empty, then whitelisting is considered disabled and all fonts are allowed.
- * [WARNING] Creating your own probably highly-unique whitelist will raise your entropy.
- * Eventually privacy.resistFingerprinting (see 4500) will cover this
+ * If the whitelist is empty, then whitelisting is considered disabled and all fonts are allowed
+ * [NOTE] In FF81+ the whitelist **overrides** RFP's font visibility (see 4618)
+ * [WARNING] **DO NOT USE**: in FF80+ RFP covers this, and non-RFP users should use font vis (4618)
 * [1] https://bugzilla.mozilla.org/1121643 ***/
   // user_pref("font.system.whitelist", ""); // [HIDDEN PREF]

@ -831,9 +811,7 @@ user_pref("gfx.font_rendering.graphite.enabled", false);
            harden it a bit: set XOriginPolicy (1603) to 1 (as per the settings below)
       harden it a bit more: set XOriginPolicy (1603) to 2 (and optionally 1604 to 1 or 2), expect breakage
     ---
-     If you want any REAL control over referers and breakage, then use an extension. Either:
-              uMatrix: limited by scope, all requests are spoofed or not-spoofed
-       Smart Referrer: granular with source<->destination, whitelists
+     If you want any REAL control over referers and breakage, then use an extension
     ---
                    full URI: https://example.com:8888/foo/bar.html?id=1234
       scheme+host+port+path: https://example.com:8888/foo/bar.html
@ -902,8 +880,7 @@ user_pref("_user.js.parrot", "1800 syntax error: the parrot's pushing up daisies
 /* 1803: disable Flash plugin
 * 0=deactivated, 1=ask, 2=enabled
 * ESR52.x is the last branch to *fully* support NPAPI, FF52+ stable only supports Flash
- * [NOTE] You can still override individual sites via site permissions
- * [1] https://www.ghacks.net/2013/07/09/how-to-make-sure-that-a-firefox-plugin-never-activates-again/ ***/
+ * [NOTE] You can still override individual sites via site permissions ***/
 user_pref("plugin.state.flash", 0);
 /* 1820: disable GMP (Gecko Media Plugins)
 * [1] https://wiki.mozilla.org/GeckoMediaPlugins ***/
@ -926,7 +903,7 @@ user_pref("_user.js.parrot", "2000 syntax error: the parrot's snuffed it!");
 * [1] https://www.privacytools.io/#webrtc ***/
 user_pref("media.peerconnection.enabled", false);
 /* 2002: limit WebRTC IP leaks if using WebRTC
- * In FF70+ these settings match Mode 4 (Mode 3 in older versions) (see [3])
+ * In FF70+ these settings match Mode 4 (Mode 3 in older versions), see [3]
 * [TEST] https://browserleaks.com/webrtc
 * [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1189041,1297416,1452713
 * [2] https://wiki.mozilla.org/Media/WebRTC/Privacy
@ -961,35 +938,26 @@ user_pref("media.getusermedia.audiocapture.enabled", false);
   // user_pref("media.autoplay.default", 5);
 /* 2031: disable autoplay of HTML5 media if you interacted with the site [FF78+]
 * 0=sticky (default), 1=transient, 2=user
+ * Firefox's Autoplay Policy Documentation [PDF] is linked below via SUMO
 * [NOTE] If you have trouble with some video sites, then add an exception (see 2030)
- * [1] https://html.spec.whatwg.org/multipage/interaction.html#sticky-activation ***/
+ * [1] https://support.mozilla.org/questions/1293231 ***/
 user_pref("media.autoplay.blocking_policy", 2);

 /*** [SECTION 2200]: WINDOW MEDDLING & LEAKS / POPUPS ***/
 user_pref("_user.js.parrot", "2200 syntax error: the parrot's 'istory!");
-/* 2201: prevent websites from disabling new window features ***/
-user_pref("dom.disable_window_open_feature.close", true);
-user_pref("dom.disable_window_open_feature.location", true); // [DEFAULT: true]
-user_pref("dom.disable_window_open_feature.menubar", true);
-user_pref("dom.disable_window_open_feature.minimizable", true);
-user_pref("dom.disable_window_open_feature.personalbar", true); // bookmarks toolbar
-user_pref("dom.disable_window_open_feature.resizable", true); // [DEFAULT: true]
-user_pref("dom.disable_window_open_feature.status", true); // [DEFAULT: true]
-user_pref("dom.disable_window_open_feature.titlebar", true);
-user_pref("dom.disable_window_open_feature.toolbar", true);
 /* 2202: prevent scripts from moving and resizing open windows ***/
 user_pref("dom.disable_window_move_resize", true);
 /* 2203: open links targeting new windows in a new tab instead
 * This stops malicious window sizes and some screen resolution leaks.
 * You can still right-click a link and open in a new window.
- * [TEST] https://ghacksuserjs.github.io/TorZillaPrint/TorZillaPrint.html#screen
+ * [TEST] https://arkenfox.github.io/TZP/tzp.html#screen
 * [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/9881 ***/
-user_pref("browser.link.open_newwindow", 3);
+user_pref("browser.link.open_newwindow", 3); // 1=most recent window or tab 2=new window, 3=new tab
 user_pref("browser.link.open_newwindow.restriction", 0);
 /* 2204: disable Fullscreen API (requires user interaction) to prevent screen-resolution leaks
 * [NOTE] You can still manually toggle the browser's fullscreen state (F11),
 * but this pref will disable embedded video/game fullscreen controls, e.g. youtube
- * [TEST] https://ghacksuserjs.github.io/TorZillaPrint/TorZillaPrint.html#screen ***/
+ * [TEST] https://arkenfox.github.io/TZP/tzp.html#screen ***/
   // user_pref("full-screen-api.enabled", false);
 /* 2210: block popup windows
 * [SETTING] Privacy & Security>Permissions>Block pop-up windows ***/
@ -1004,9 +972,6 @@ user_pref("dom.popup_allowed_events", "click dblclick");
     including service and shared workers. Shared workers can be utilized by multiple scripts and
     communicate between browsing contexts (windows/tabs/iframes) and can even control your cache.

-     [NOTE] uMatrix 1.2.0+ allows a per-scope control for workers (2301-deprecated) and service workers (2302)
-              #Required reading [#] https://github.com/gorhill/uMatrix/releases/tag/1.2.0
-
     [1]    Web Workers: https://developer.mozilla.org/docs/Web/API/Web_Workers_API
     [2]         Worker: https://developer.mozilla.org/docs/Web/API/Worker
     [3] Service Worker: https://developer.mozilla.org/docs/Web/API/Service_Worker_API
@ -1057,9 +1022,8 @@ user_pref("_user.js.parrot", "2400 syntax error: the parrot's kicked the bucket!
 * [NOTE] This will break some sites' functionality e.g. Outlook, Twitter, Facebook, Wordpress
 * This applies to onCut/onCopy/onPaste events - i.e. it requires interaction with the website
 * [WARNING] If both 'middlemouse.paste' and 'general.autoScroll' are true (at least one
- * is default false) then enabling this pref can leak clipboard content, see [2]
- * [1] https://www.ghacks.net/2014/01/08/block-websites-reading-modifying-clipboard-contents-firefox/
- * [2] https://bugzilla.mozilla.org/1528289 */
+ * is default false) then enabling this pref can leak clipboard content, see [1]
+ * [1] https://bugzilla.mozilla.org/1528289 */
   // user_pref("dom.event.clipboardevents.enabled", false);
 /* 2404: disable clipboard commands (cut/copy) from "non-privileged" content [FF41+]
 * this disables document.execCommand("cut"/"copy") to protect your clipboard
@ -1088,18 +1052,18 @@ user_pref("javascript.options.asmjs", false);
   // user_pref("javascript.options.ion", false);
   // user_pref("javascript.options.baselinejit", false);
   // user_pref("javascript.options.jit_trustedprincipals", true); // [FF75+] [HIDDEN PREF]
-/* 2422: disable WebAssembly [FF52+] [SETUP-PERF]
- * [NOTE] In FF71+ this no longer affects extensions (1576254)
- * [1] https://developer.mozilla.org/docs/WebAssembly ***/
+/* 2422: disable WebAssembly [FF52+]
+ * Vulnerabilities have increasingly been found, including those known and fixed
+ * in native programs years ago [2]. WASM has powerful low-level access, making
+ * certain attacks (brute-force) and vulnerabilities more possible
+ * [STATS] ~0.2% of websites, about half of which are for crytopmining / malvertising [2][3]
+ * [1] https://developer.mozilla.org/docs/WebAssembly
+ * [2] https://spectrum.ieee.org/tech-talk/telecom/security/more-worries-over-the-security-of-web-assembly
+ * [3] https://www.zdnet.com/article/half-of-the-websites-using-webassembly-use-it-for-malicious-purposes ***/
 user_pref("javascript.options.wasm", false);
-/* 2426: disable Intersection Observer API [FF55+]
- * [1] https://developer.mozilla.org/docs/Web/API/Intersection_Observer_API
- * [2] https://w3c.github.io/IntersectionObserver/
- * [3] https://bugzilla.mozilla.org/1243846 ***/
-   // user_pref("dom.IntersectionObserver.enabled", false);
 /* 2429: enable (limited but sufficient) window.opener protection [FF65+]
 * Makes rel=noopener implicit for target=_blank in anchor and area elements when no rel attribute is set ***/
-user_pref("dom.targetBlankNoOpener.enabled", true); // [DEFAULT: true FF78+]
+user_pref("dom.targetBlankNoOpener.enabled", true); // [DEFAULT: true FF79+]

 /*** [SECTION 2500]: HARDWARE FINGERPRINTING ***/
 user_pref("_user.js.parrot", "2500 syntax error: the parrot's shuffled off 'is mortal coil!");
@ -1107,7 +1071,7 @@ user_pref("_user.js.parrot", "2500 syntax error: the parrot's shuffled off 'is m
 * Initially a Linux issue (high precision readout) that was fixed.
 * However, it is still another metric for fingerprinting, used to raise entropy.
 * e.g. do you have a battery or not, current charging status, charge level, times remaining etc
- * [NOTE] From FF52+ Battery Status API is only available in chrome/privileged code. see [1]
+ * [NOTE] From FF52+ Battery Status API is only available in chrome/privileged code, see [1]
 * [1] https://bugzilla.mozilla.org/1313580 ***/
   // user_pref("dom.battery.enabled", false);
 /* 2505: disable media device enumeration [FF29+]
@ -1143,7 +1107,7 @@ user_pref("dom.webaudio.enabled", false);
 /*** [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]
- * [SETTING] Privacy & Security>Permissions>Prevent accessibility services from accessing your browser
+ * [SETTING] Privacy & Security>Permissions>Prevent accessibility services from accessing your browser (FF80 or lower)
 * [1] https://support.mozilla.org/kb/accessibility-services ***/
 user_pref("accessibility.force_disabled", 1);
 /* 2602: disable sending additional analytics to web servers
@ -1162,15 +1126,14 @@ user_pref("browser.uitour.url", "");
 * [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: disable remote debugging
+/* 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]
 /* 2609: disable MathML (Mathematical Markup Language) [FF51+] [SETUP-HARDEN]
- * [TEST] https://ghacksuserjs.github.io/TorZillaPrint/TorZillaPrint.html#misc
+ * [TEST] https://arkenfox.github.io/TZP/tzp.html#misc
 * [1] https://bugzilla.mozilla.org/1173199 ***/
   // user_pref("mathml.disabled", true);
 /* 2610: disable in-content SVG (Scalable Vector Graphics) [FF53+]
- * [NOTE] In FF70+ and ESR68.1.0+ this no longer affects extensions (1564208)
 * [WARNING] Expect breakage incl. youtube player controls. Best left for a "hardened" profile.
 * [1] https://bugzilla.mozilla.org/1216893 ***/
   // user_pref("svg.disabled", true);
@ -1210,8 +1173,7 @@ user_pref("network.IDN_show_punycode", true);
 * CAVEAT: JS can still force a pdf to open in-browser by bundling its own code (rare)
 * [SETTING] General>Applications>Portable Document Format (PDF) ***/
 user_pref("pdfjs.disabled", false); // [DEFAULT: false]
-/* 2621: disable links launching Windows Store on Windows 8/8.1/10 [WINDOWS]
- * [1] https://www.ghacks.net/2016/03/25/block-firefox-chrome-windows-store/ ***/
+/* 2621: disable links launching Windows Store on Windows 8/8.1/10 [WINDOWS] ***/
 user_pref("network.protocol-handler.external.ms-windows-store", false);
 /* 2622: enforce no system colors; they can be fingerprinted
 * [SETTING] General>Language and Appearance>Fonts and Colors>Colors>Use system colors ***/
@ -1222,6 +1184,10 @@ user_pref("browser.display.use_system_colors", false); // [DEFAULT: false]
 * for these will show/use their correct 3rd party origin
 * [1] https://groups.google.com/forum/#!topic/mozilla.dev.platform/BdFOMAuCGW8/discussion */
 user_pref("permissions.delegation.enabled", false);
+/* 2624: enable "window.name" protection [FF82+]
+ * If a new page from another domain is loaded into a tab, then window.name is set to an empty string. The original
+ * string is restored if the tab reverts back to the original page. This change prevents some cross-site attacks ***/
+user_pref("privacy.window.name.update.enabled", true);

 /** DOWNLOADS ***/
 /* 2650: discourage downloading to desktop
@ -1281,14 +1247,13 @@ user_pref("security.dialog_enable_delay", 700);
 user_pref("_user.js.parrot", "2700 syntax error: the parrot's joined the bleedin' choir invisible!");
 /* 2701: disable 3rd-party cookies and site-data [SETUP-WEB]
 * 0=Accept cookies and site data, 1=(Block) All third-party cookies, 2=(Block) All cookies,
- * 3=(Block) Cookies from unvisited websites, 4=(Block) Cross-site and social media trackers (FF63+) (default FF69+)
+ * 3=(Block) Cookies from unvisited websites, 4=(Block) Cross-site and social media trackers (default)
 * [NOTE] You can set exceptions under site permissions or use an extension
 * [NOTE] Enforcing category to custom ensures ETP related prefs are always honored
 * [SETTING] Privacy & Security>Enhanced Tracking Protection>Custom>Cookies ***/
 user_pref("network.cookie.cookieBehavior", 1);
 user_pref("browser.contentblocking.category", "custom");
-/* 2702: set third-party cookies (i.e ALL) (if enabled, see 2701) to session-only
-   and (FF58+) set third-party non-secure (i.e HTTP) cookies to session-only
+/* 2702: set third-party cookies (if enabled, see 2701) to session-only
   [NOTE] .sessionOnly overrides .nonsecureSessionOnly except when .sessionOnly=false and
   .nonsecureSessionOnly=true. This allows you to keep HTTPS cookies, but session-only HTTP ones
 * [1] https://feeding.cloud.geek.nz/posts/tweaking-cookies-for-privacy-in-firefox/ ***/
@ -1320,6 +1285,8 @@ user_pref("browser.cache.offline.enable", false);
 /* 2755: disable Storage Access API [FF65+]
 * [1] https://developer.mozilla.org/en-US/docs/Web/API/Storage_Access_API ***/
   // user_pref("dom.storage_access.enabled", false);
+/* 2760: enable Local Storage Next Generation (LSNG) [FF65+] ***/
+user_pref("dom.storage.next_gen", true);

 /*** [SECTION 2800]: SHUTDOWN
     You should set the values to what suits you best.
@ -1375,107 +1342,105 @@ user_pref("privacy.cpd.siteSettings", false); // Site Preferences
 user_pref("privacy.sanitize.timeSpan", 0);

 /*** [SECTION 4000]: FPI (FIRST PARTY ISOLATION)
- ** 1278037 - isolate indexedDB (FF51+)
- ** 1277803 - isolate favicons (FF52+)
- ** 1264562 - isolate OCSP cache (FF52+)
- ** 1268726 - isolate Shared Workers (FF52+)
- ** 1316283 - isolate SSL session cache (FF52+)
- ** 1317927 - isolate media cache (FF53+)
- ** 1323644 - isolate HSTS and HPKP (FF54+)
- ** 1334690 - isolate HTTP Alternative Services (FF54+)
- ** 1334693 - isolate SPDY/HTTP2 (FF55+)
- ** 1337893 - isolate DNS cache (FF55+)
- ** 1344170 - isolate blob: URI (FF55+)
- ** 1300671 - isolate data:, about: URLs (FF55+)
- ** 1473247 - isolate IP addresses (FF63+)
- ** 1492607 - isolate postMessage with targetOrigin "*" (requires 4002) (FF65+)
- ** 1542309 - isolate top-level domain URLs when host is in the public suffix list (FF68+)
- ** 1506693 - isolate pdfjs range-based requests (FF68+)
- ** 1330467 - isolate site permissions (FF69+)
- ** 1534339 - isolate IPv6 (FF73+)
+   1278037 - indexedDB (FF51+)
+   1277803 - favicons (FF52+)
+   1264562 - OCSP cache (FF52+)
+   1268726 - Shared Workers (FF52+)
+   1316283 - SSL session cache (FF52+)
+   1317927 - media cache (FF53+)
+   1323644 - HSTS and HPKP (FF54+)
+   1334690 - HTTP Alternative Services (FF54+)
+   1334693 - SPDY/HTTP2 (FF55+)
+   1337893 - DNS cache (FF55+)
+   1344170 - blob: URI (FF55+)
+   1300671 - data:, about: URLs (FF55+)
+   1473247 - IP addresses (FF63+)
+   1492607 - postMessage with targetOrigin "*" (requires 4002) (FF65+)
+   1542309 - top-level domain URLs when host is in the public suffix list (FF68+)
+   1506693 - pdfjs range-based requests (FF68+)
+   1330467 - site permissions (FF69+)
+   1534339 - IPv6 (FF73+)
 ***/
 user_pref("_user.js.parrot", "4000 syntax error: the parrot's pegged out");
 /* 4001: enable First Party Isolation [FF51+]
 * [SETUP-WEB] May break cross-domain logins and site functionality until perfected
- * [1] https://bugzilla.mozilla.org/1260931 ***/
+ * [1] https://bugzilla.mozilla.org/1260931
+ * [2] https://bugzilla.mozilla.org/1299996 [META] ***/
 user_pref("privacy.firstparty.isolate", true);
 /* 4002: enforce FPI restriction for window.opener [FF54+]
 * [NOTE] Setting this to false may reduce the breakage in 4001
 * FF65+ blocks postMessage with targetOrigin "*" if originAttributes don't match. But
- * to reduce breakage it ignores the 1st-party domain (FPD) originAttribute. (see [2],[3])
+ * to reduce breakage it ignores the 1st-party domain (FPD) originAttribute, see [2],[3]
 * The 2nd pref removes that limitation and will only allow communication if FPDs also match.
 * [1] https://bugzilla.mozilla.org/1319773#c22
 * [2] https://bugzilla.mozilla.org/1492607
 * [3] https://developer.mozilla.org/en-US/docs/Web/API/Window/postMessage ***/
   // user_pref("privacy.firstparty.isolate.restrict_opener_access", true); // [DEFAULT: true]
-   // user_pref("privacy.firstparty.isolate.block_post_message", true); // [HIDDEN PREF ESR]
+   // user_pref("privacy.firstparty.isolate.block_post_message", true);

 /*** [SECTION 4500]: RFP (RESIST FINGERPRINTING)
-   This master switch will be used for a wide range of items, many of which will
-   **override** existing prefs from FF55+, often providing a **better** solution
+   RFP covers a wide range of ongoing fingerprinting solutions.
+   It is an all-or-nothing buy in: you cannot pick and choose what parts you want

-   IMPORTANT: As existing prefs become redundant, and some of them WILL interfere
-   with how RFP works, they will be moved to section 4600 and made inactive
+   [WARNING] Do NOT use extensions to alter RFP protected metrics
+   [WARNING] Do NOT use prefs in section 4600 with RFP as they can interfere

- ** 418986 - limit window.screen & CSS media queries leaking identifiable info (FF41+)
-      [NOTE] Info only: To set a size, open a XUL (chrome) page (such as about:config) which is at
-      100% zoom, hit Shift+F4 to open the scratchpad, type window.resizeTo(1366,768), hit Ctrl+R to run.
-      Test your window size, do some math, resize to allow for all the non inner window elements
-      [TEST] https://ghacksuserjs.github.io/TorZillaPrint/TorZillaPrint.html#screen
- ** 1281949 - spoof screen orientation (FF50+)
- ** 1281963 - hide the contents of navigator.plugins and navigator.mimeTypes (FF50+)
-      FF53: Fixes GetSupportedNames in nsMimeTypeArray and nsPluginArray (1324044)
- ** 1330890 - spoof timezone as UTC 0 (FF55+)
-      FF58: Date.toLocaleFormat deprecated (818634)
-      FF60: Date.toLocaleDateString and Intl.DateTimeFormat fixed (1409973)
- ** 1360039 - spoof navigator.hardwareConcurrency as 2 (see 4601) (FF55+)
-      This spoof *shouldn't* affect core chrome/Firefox performance
- ** 1217238 - reduce precision of time exposed by javascript (FF55+)
- ** 1369303 - spoof/disable performance API (see 2410-deprecated, 4602, 4603) (FF56+)
- ** 1333651 & 1383495 & 1396468 - spoof User Agent & Navigator API (see section 4700) (FF56+)
-      FF56: Version: rounded down to the nearest multiple of 10
-      FF57: Version: match current ESR (1393283, 1418672, 1418162, 1511763)
-      FF59: OS: Windows, OSX, Android, or Linux (to reduce breakage) (1404608)
-      FF66: OS: HTTP Headers reduced to Windows or Android (1509829)
-      FF68: OS: updated to Windows 10, OS 10.14, and Android 8.1 (1511434)
-      FF78: OS: updated to OS 10.15 and Android 9.0 (1635011)
- ** 1369319 - disable device sensor API (see 4604) (FF56+)
- ** 1369357 - disable site specific zoom (see 4605) (FF56+)
- ** 1337161 - hide gamepads from content (see 4606) (FF56+)
- ** 1372072 - spoof network information API as "unknown" when dom.netinfo.enabled = true (see 4607) (FF56+)
- ** 1333641 - reduce fingerprinting in WebSpeech API (see 4608) (FF56+)
- ** 1372069 & 1403813 & 1441295 - block geolocation requests (same as denying a site permission) (see 0201, 0202) (FF56-62)
- ** 1369309 - spoof media statistics (see 4610) (FF57+)
- ** 1382499 - reduce screen co-ordinate fingerprinting in Touch API (see 4611) (FF57+)
- ** 1217290 & 1409677 - enable fingerprinting resistance for WebGL (see 2010-12) (FF57+)
- ** 1382545 - reduce fingerprinting in Animation API (FF57+)
- ** 1354633 - limit MediaError.message to a whitelist (FF57+)
- ** 1382533 - enable fingerprinting resistance for Presentation API (FF57+)
+ FF41+
+    418986 - limit window.screen & CSS media queries leaking identifiable info
+      [TEST] https://arkenfox.github.io/TZP/tzp.html#screen
+ FF50+
+   1281949 - spoof screen orientation
+   1281963 - hide the contents of navigator.plugins and navigator.mimeTypes (FF50+)
+ FF55+
+   1330890 - spoof timezone as UTC 0
+   1360039 - spoof navigator.hardwareConcurrency as 2 (see 4601)
+   1217238 - reduce precision of time exposed by javascript
+ FF56+
+   1369303 - spoof/disable performance API (see 4602, 4603)
+   1333651 - spoof User Agent & Navigator API (see section 4700)
+      JS: FF78+ the version is spoofed as 78, and the OS as Windows 10, OS 10.15, Android 9, or Linux
+      HTTP Headers: spoofed as Windows or Android
+   1369319 - disable device sensor API (see 4604)
+   1369357 - disable site specific zoom (see 4605)
+   1337161 - hide gamepads from content (see 4606)
+   1372072 - spoof network information API as "unknown" when dom.netinfo.enabled = true (see 4607)
+   1333641 - reduce fingerprinting in WebSpeech API (see 4608)
+ FF57+
+   1369309 - spoof media statistics (see 4610)
+   1382499 - reduce screen co-ordinate fingerprinting in Touch API (see 4611)
+   1217290 & 1409677 - enable fingerprinting resistance for WebGL (see 2010-12)
+   1382545 - reduce fingerprinting in Animation API
+   1354633 - limit MediaError.message to a whitelist
+   1382533 - enable fingerprinting resistance for Presentation API
      This blocks exposure of local IP Addresses via mDNS (Multicast DNS)
- **  967895 - spoof canvas and enable site permission prompt before allowing canvas data extraction (FF58+)
-      FF59: Added to site permissions panel (1413780) Only prompt when triggered by user input (1376865)
- ** 1372073 - spoof/block fingerprinting in MediaDevices API (FF59+)
+ FF58+
+    967895 - spoof canvas and enable site permission prompt before allowing canvas data extraction
+ FF59+
+   1372073 - spoof/block fingerprinting in MediaDevices API
      Spoof: enumerate devices reports one "Internal Camera" and one "Internal Microphone" if
             media.navigator.enabled is true (see 2505 which we chose to keep disabled)
      Block: suppresses the ondevicechange event (see 4612)
- ** 1039069 - warn when language prefs are set to non en-US (see 0210, 0211) (FF59+)
- ** 1222285 & 1433592 - spoof keyboard events and suppress keyboard modifier events (FF59+)
+   1039069 - warn when language prefs are set to non en-US (see 0210, 0211)
+   1222285 & 1433592 - spoof keyboard events and suppress keyboard modifier events
      Spoofing mimics the content language of the document. Currently it only supports en-US.
      Modifier events suppressed are SHIFT and both ALT keys. Chrome is not affected.
-      FF60: Fix keydown/keyup events (1438795)
- ** 1337157 - disable WebGL debug renderer info (see 4613) (FF60+)
- ** 1459089 - disable OS locale in HTTP Accept-Language headers (ANDROID) (FF62+)
- ** 1479239 - return "no-preference" with prefers-reduced-motion (see 4617) (FF63+)
- ** 1363508 - spoof/suppress Pointer Events (see 4614) (FF64+)
+ FF60-67
+   1337157 - disable WebGL debug renderer info (see 4613) (FF60+)
+   1459089 - disable OS locale in HTTP Accept-Language headers (ANDROID) (FF62+)
+   1479239 - return "no-preference" with prefers-reduced-motion (see 4614) (FF63+)
+   1363508 - spoof/suppress Pointer Events (see 4615) (FF64+)
      FF65: pointerEvent.pointerid (1492766)
- ** 1485266 - disable exposure of system colors to CSS or canvas (see 4615) (FF67+)
- ** 1407366 - enable inner window letterboxing (see 4504) (FF67+)
- ** 1494034 - return "light" with prefers-color-scheme (see 4616) (FF67+)
-      [1] https://developer.mozilla.org/en-US/docs/Web/CSS/@media/prefers-color-scheme
- ** 1564422 - spoof audioContext outputLatency (FF70+)
- ** 1595823 - spoof audioContext sampleRate (FF72+)
- ** 1607316 - spoof pointer as coarse and hover as none (ANDROID) (FF74+)
- ** 1621433 - randomize canvas (previously FF58+ returned an all-white canvas) (FF78+)
+   1485266 - disable exposure of system colors to CSS or canvas (see 4616) (FF67+)
+   1407366 - enable inner window letterboxing (see 4504) (FF67+)
+   1494034 - return "light" with prefers-color-scheme (see 4617) (FF67+)
+ FF68-77
+   1564422 - spoof audioContext outputLatency (FF70+)
+   1595823 - spoof audioContext sampleRate (FF72+)
+   1607316 - spoof pointer as coarse and hover as none (ANDROID) (FF74+)
+ FF78+
+   1621433 - randomize canvas (previously FF58+ returned an all-white canvas) (FF78+)
+   1653987 - limit font visibility to bundled and "Base Fonts" (see 4618) (non-ANDROID) (FF80+)
+   1461454 - spoof smooth=true and powerEfficient=false for supported media in MediaCapabilities (FF82+)
 ***/
 user_pref("_user.js.parrot", "4500 syntax error: the parrot's popped 'is clogs");
 /* 4501: enable privacy.resistFingerprinting [FF41+]
@ -1492,22 +1457,22 @@ user_pref("privacy.resistFingerprinting", true);
   // user_pref("privacy.window.maxInnerWidth", 1000);
   // user_pref("privacy.window.maxInnerHeight", 1000);
 /* 4503: disable mozAddonManager Web API [FF57+]
- * [NOTE] As a side-effect in FF57-59 this allowed extensions to work on AMO. In FF60+ you also need
- * to sanitize or clear extensions.webextensions.restrictedDomains (see 2662) to keep that side-effect
+ * [NOTE] To allow extensions to work on AMO, you also need 2662
 * [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1384330,1406795,1415644,1453988 ***/
 user_pref("privacy.resistFingerprinting.block_mozAddonManager", true); // [HIDDEN PREF]
 /* 4504: enable RFP letterboxing [FF67+]
- * Dynamically resizes the inner window (FF67; 200w x100h: FF68+; stepped ranges) by applying letterboxing,
- * using dimensions which waste the least content area, If you use the dimension pref, then it will only apply
- * those resolutions. The format is "width1xheight1, width2xheight2, ..." (e.g. "800x600, 1000x1000, 1600x900")
- * [SETUP-WEB] This does NOT require RFP (see 4501) **for now**, so if you're not using 4501, or you are but you're
- * not taking anti-fingerprinting seriously and a little visual change upsets you, then feel free to flip this pref
+ * Dynamically resizes the inner window by applying margins in stepped ranges, see [2]
+ * If you use the dimension pref, then it will only apply those resolutions. The format is
+ * "width1xheight1, width2xheight2, ..." (e.g. "800x600, 1000x1000, 1600x900")
+ * [SETUP-WEB] This does NOT require RFP (see 4501) **for now**, so if you're not using 4501, or you are but
+ * dislike margins being applied, then flip this pref, keeping in mind that it is effectively fingerprintable
 * [WARNING] The dimension pref is only meant for testing, and we recommend you DO NOT USE it
- * [1] https://bugzilla.mozilla.org/1407366 ***/
+ * [1] https://bugzilla.mozilla.org/1407366
+ * [2] https://hg.mozilla.org/mozilla-central/rev/6d2d7856e468#l2.32 ***/
 user_pref("privacy.resistFingerprinting.letterboxing", true); // [HIDDEN PREF]
   // user_pref("privacy.resistFingerprinting.letterboxing.dimensions", ""); // [HIDDEN PREF]
 /* 4510: disable showing about:blank as soon as possible during startup [FF60+]
- * When default true (FF62+) this no longer masks the RFP chrome resizing activity
+ * When default true this no longer masks the RFP chrome resizing activity
 * [1] https://bugzilla.mozilla.org/1448423 ***/
 user_pref("browser.startup.blankWindow", false);
 /* 4520: disable chrome animations [FF77+] [RESTART]
@ -1515,15 +1480,7 @@ user_pref("browser.startup.blankWindow", false);
 user_pref("ui.prefersReducedMotion", 1); // [HIDDEN PREF]

 /*** [SECTION 4600]: RFP ALTERNATIVES
-   * non-RFP users:
-       Enable the whole section (see the SETUP tag below)
-   * RFP users:
-       Make sure these are reset in about:config. They are redundant. In fact, some
-       even cause RFP to not behave as you would expect and alter your fingerprint
-   * ESR RFP users:
-       Reset those *up to and including* your version. Add those *after* your version
-       as active prefs in your overrides. This is assuming that the patch wasn't also
-       backported to Firefox ESR. Backporting RFP patches to ESR is rare.
+     [WARNING] Do NOT use prefs in this section with RFP as they can interfere
 ***/
 user_pref("_user.js.parrot", "4600 syntax error: the parrot's crossed the Jordan");
 /* [SETUP-non-RFP] Non-RFP users replace the * with a slash on this line to enable these
@ -1594,52 +1551,50 @@ user_pref("media.ondevicechange.enabled", false);
   // [2] https://developer.mozilla.org/docs/Web/API/WEBGL_debug_renderer_info
 user_pref("webgl.enable-debug-renderer-info", false);
 // * * * /
-// FF65+
-// 4614: [2516] disable PointerEvents
+// FF63+
+// 4614: enforce prefers-reduced-motion as no-preference [FF63+] [RESTART]
+   // 0=no-preference, 1=reduce
+user_pref("ui.prefersReducedMotion", 0); // [HIDDEN PREF]
+// FF64+
+// 4615: [2516] disable PointerEvents
   // [1] https://developer.mozilla.org/en-US/docs/Web/API/PointerEvent
 user_pref("dom.w3c_pointer_events.enabled", false);
 // * * * /
 // FF67+
-// 4615: [2618] disable exposure of system colors to CSS or canvas [FF44+]
+// 4616: [2618] disable exposure of system colors to CSS or canvas [FF44+]
   // [NOTE] See second listed bug: may cause black on black for elements with undefined colors
   // [SETUP-CHROME] Might affect CSS in themes and extensions
   // [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=232227,1330876
 user_pref("ui.use_standins_for_native_colors", true);
-// 4616: enforce prefers-color-scheme as light [FF67+]
+// 4617: enforce prefers-color-scheme as light [FF67+]
   // 0=light, 1=dark : This overrides your OS value
 user_pref("ui.systemUsesDarkTheme", 0); // [HIDDEN PREF]
-// 4617: enforce prefers-reduced-motion as no-preference [FF63+] [RESTART]
-   // 0=no-preference, 1=reduce
-user_pref("ui.prefersReducedMotion", 0); // [HIDDEN PREF]
+// FF80+
+// 4618: limit font visbility (non-ANDROID) [FF79+]
+   // Uses hardcoded lists with two parts: kBaseFonts + kLangPackFonts, see [1]
+   // 1=only base system fonts, 2=also fonts from optional language packs, 3=also user-installed fonts
+   // [NOTE] Bundled fonts are auto-allowed
+   // [1] https://searchfox.org/mozilla-central/search?path=StandardFonts*.inc
+user_pref("layout.css.font-visibility.level", 1);
 // * * * /
 // ***/

-/*** [SECTION 4700]: RFP ALTERNATIVES (NAVIGATOR / USER AGENT (UA) SPOOFING)
-     This is FYI ONLY. These prefs are INSUFFICIENT(a) on their own, you need
-     to use RFP (4500) or an extension, in which case they become POINTLESS.
-     (a) Many of the components that make up your UA can be derived by other means.
-         And when those values differ, you provide more bits and raise entropy.
-         Examples of leaks include workers, navigator objects, date locale/formats,
-         iframes, headers, tcp/ip attributes, feature detection, and **many** more.
-     ALL values below intentionally left blank - use RFP, or get a vetted, tested
-         extension and mimic RFP values to *lower* entropy, or randomize to *raise* it
+/*** [SECTION 4700]: RFP ALTERNATIVES (USER AGENT SPOOFING)
+     These prefs are insufficient and leak. Use RFP and **nothing else**
+     - Many of the user agent components can be derived by other means. When those
+       values differ, you provide more bits and raise entropy. Examples include
+       workers, iframes, headers, tcp/ip attributes, feature detection, and many more
+     - Web extensions also lack APIs to fully protect spoofing
 ***/
 user_pref("_user.js.parrot", "4700 syntax error: the parrot's taken 'is last bow");
-/* 4701: navigator.userAgent ***/
-   // user_pref("general.useragent.override", ""); // [HIDDEN PREF]
-/* 4702: navigator.buildID
- * Revealed build time down to the second. In FF64+ it now returns a fixed timestamp
- * [1] https://bugzilla.mozilla.org/583181
- * [2] https://www.fxsitecompat.com/en-CA/docs/2018/navigator-buildid-now-returns-a-fixed-timestamp/ ***/
-   // user_pref("general.buildID.override", ""); // [HIDDEN PREF]
-/* 4703: navigator.appName ***/
+/* 4701: navigator DOM object overrides
+ * [WARNING] DO NOT USE ***/
   // user_pref("general.appname.override", ""); // [HIDDEN PREF]
-/* 4704: navigator.appVersion ***/
   // user_pref("general.appversion.override", ""); // [HIDDEN PREF]
-/* 4705: navigator.platform ***/
-   // user_pref("general.platform.override", ""); // [HIDDEN PREF]
-/* 4706: navigator.oscpu ***/
+   // user_pref("general.buildID.override", ""); // [HIDDEN PREF]
   // user_pref("general.oscpu.override", ""); // [HIDDEN PREF]
+   // user_pref("general.platform.override", ""); // [HIDDEN PREF]
+   // user_pref("general.useragent.override", ""); // [HIDDEN PREF]

 /*** [SECTION 5000]: PERSONAL
     Non-project related but useful. If any of these interest you, add them to your overrides ***/
@ -1685,92 +1640,28 @@ user_pref("_user.js.parrot", "5000 syntax error: this is an ex-parrot!");
   // user_pref("xpinstall.signatures.required", false); // enforced extension signing (Nightly/ESR)

 /*** [SECTION 9999]: DEPRECATED / REMOVED / LEGACY / RENAMED
-     Documentation denoted as [-]. Items deprecated in FF68 or earlier have been archived at [1],
+     Documentation denoted as [-]. Items deprecated in FF78 or earlier have been archived at [1],
     which also provides a link-clickable, viewer-friendly version of the deprecated bugzilla tickets
-     [1] https://github.com/ghacksuserjs/ghacks-user.js/issues/123
+     [1] https://github.com/arkenfox/user.js/issues/123
 ***/
 user_pref("_user.js.parrot", "9999 syntax error: the parrot's deprecated!");
-/* ESR68.x still uses all the following prefs
+/* ESR78.x still uses all the following prefs
 // [NOTE] replace the * with a slash in the line above to re-enable them
-// FF69
-// 1405: disable WOFF2 (Web Open Font Format) [FF35+]
-   // [-] https://bugzilla.mozilla.org/1556991
-   // user_pref("gfx.downloadable_fonts.woff2.enabled", false);
-// 1802: enforce click-to-play for plugins
-   // [-] https://bugzilla.mozilla.org/1519434
-user_pref("plugins.click_to_play", true); // [DEFAULT: true FF25+]
-// 2033: disable autoplay for muted videos [FF63+] - replaced by 'media.autoplay.default' options (2030)
-   // [-] https://bugzilla.mozilla.org/1562331
-   // user_pref("media.autoplay.allow-muted", false);
+// FF79
+// 0212: enforce fallback text encoding to match en-US
+   // When the content or server doesn't declare a charset the browser will
+   // fallback to the "Current locale" based on your application language
+   // [TEST] https://hsivonen.com/test/moz/check-charset.htm
+   // [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/20025
+   // [-] https://bugzilla.mozilla.org/1603712
+user_pref("intl.charset.fallback.override", "windows-1252");
 // * * * /
-// FF71
-// 2608: disable WebIDE and ADB extension download
-   // [1] https://trac.torproject.org/projects/tor/ticket/16222
-   // [-] https://bugzilla.mozilla.org/1539462
-user_pref("devtools.webide.enabled", false); // [DEFAULT: false FF70+]
-user_pref("devtools.webide.autoinstallADBExtension", false); // [FF64+]
-// 2731: enforce websites to ask to store data for offline use
-   // [1] https://support.mozilla.org/questions/1098540
-   // [2] https://bugzilla.mozilla.org/959985
-   // [-] https://bugzilla.mozilla.org/1574480
-user_pref("offline-apps.allow_by_default", false);
-// * * * /
-// FF72
-// 0105a: disable Activity Stream telemetry
-   // [-] https://bugzilla.mozilla.org/1597697
-user_pref("browser.newtabpage.activity-stream.telemetry.ping.endpoint", "");
-// 0330: disable Hybdrid Content telemetry
-   // [-] https://bugzilla.mozilla.org/1520491
-user_pref("toolkit.telemetry.hybridContent.enabled", false); // [FF59+]
-// 2720: enforce IndexedDB (IDB) as enabled
-   // IDB is required for extensions and Firefox internals (even before FF63 in [1])
-   // To control *website* IDB data, control allowing cookies and service workers, or use
-   // Temporary Containers. To mitigate *website* IDB, FPI helps (4001), and/or sanitize
-   // on close (Offline Website Data, see 2800) or on-demand (Ctrl-Shift-Del), or automatically
-   // via an extension. Note that IDB currently cannot be sanitized by host.
-   // [1] https://blog.mozilla.org/addons/2018/08/03/new-backend-for-storage-local-api/
-   // [-] https://bugzilla.mozilla.org/1488583
-user_pref("dom.indexedDB.enabled", true); // [DEFAULT: true]
-// * * * /
-// FF74
-// 0203: use Mozilla geolocation service instead of Google when geolocation is enabled
-   // Optionally enable logging to the console (defaults to false)
-   // [-] https://bugzilla.mozilla.org/1613627
-user_pref("geo.wifi.uri", "https://location.services.mozilla.com/v1/geolocate?key=%MOZILLA_API_KEY%");
-   // user_pref("geo.wifi.logging.enabled", true); // [HIDDEN PREF]
-// 1704: set behaviour on "+ Tab" button to display container menu [FF53+] [SETUP-CHROME]
-   // 0=no menu (default), 1=show when clicked, 2=show on long press
-   // [1] https://bugzilla.mozilla.org/1328756
-   // [-] https://bugzilla.mozilla.org/1606265
-user_pref("privacy.userContext.longPressBehavior", 2);
-// 2012: limit WebGL
-   // [-] https://bugzilla.mozilla.org/1477756
-user_pref("webgl.disable-extensions", true);
-// * * * /
-// FF76
-// 0401: sanitize blocklist url
-   // [2] https://trac.torproject.org/projects/tor/ticket/16931
-   // [-] https://bugzilla.mozilla.org/1618188
-user_pref("extensions.blocklist.url", "https://blocklists.settings.services.mozilla.com/v1/blocklist/3/%APP_ID%/%APP_VERSION%/");
-// * * * /
-// FF77
-// 0850e: disable location bar one-off searches [FF51+]
-   // [1] https://www.ghacks.net/2016/08/09/firefox-one-off-searches-address-bar/
-   // [-] https://bugzilla.mozilla.org/1628926
-   // user_pref("browser.urlbar.oneOffSearches", false);
-// 2605: block web content in file processes [FF55+]
-   // [SETUP-WEB] You may want to disable this for corporate or developer environments
-   // [1] https://bugzilla.mozilla.org/1343184
-   // [-] https://bugzilla.mozilla.org/1603007
-user_pref("browser.tabs.remote.allowLinkedWebInFileUriProcess", false);
-// * * * /
-// FF78
-// 2031: disable autoplay of HTML5 media if you interacted with the site [FF66+] - replaced by 'media.autoplay.blocking_policy'
-   // [-] https://bugzilla.mozilla.org/1509933
-user_pref("media.autoplay.enabled.user-gestures-needed", false);
-// 5000's: disable chrome animations - replaced FF77+ by 'ui.prefersReducedMotion' (4520)
-   // [-] https://bugzilla.mozilla.org/1640501
-   // user_pref("toolkit.cosmeticAnimations.enabled", false); // [FF55+]
+// FF82
+// 0206: disable geographically specific results/search engines e.g. "browser.search.*.US"
+   // i.e. ignore all of Mozilla's various search engines in multiple locales
+   // [-] https://bugzilla.mozilla.org/1619926
+user_pref("browser.search.geoSpecificDefaults", false);
+user_pref("browser.search.geoSpecificDefaults.url", "");
 // * * * /
 // ***/

--- a/wikipiki/bullet01.png
+++ b/wikipiki/bullet01.png
--- a/wikipiki/exclamation.png
+++ b/wikipiki/exclamation.png
Author	SHA1	Message	Date
Thorin-Oakenpants	94712f59a3	83 final	2020-11-22 17:05:34 +00:00
Thorin-Oakenpants	ef93a754ce	warnings always come after notes	2020-11-21 01:49:19 +00:00
earthlng	c6ddda1aa3	Update troubleshooter.js - add `privacy.window.name.update.enabled` - remove `media.autoplay.enabled` (removed in FF63) - remove `dom.indexedDB.enabled` (removed in FF72)	2020-11-17 19:17:59 +00:00
Thorin-Oakenpants	ccbca41e2d	start 83 alpha, fixup 1244 setting info `browser.preferences.exposeHTTPSOnly` is now default true	2020-11-13 01:03:29 +00:00
Thorin-Oakenpants	5b0d173078	82 final	2020-11-13 00:55:45 +00:00
Thorin-Oakenpants	d6186819f4	domIntersectionObserver it was removed after 81-beta was released	2020-11-11 18:42:29 +00:00
Thorin-Oakenpants	ea0eb85404	82-beta	2020-11-11 18:23:00 +00:00
Thorin-Oakenpants	8dc43cfdc2	RFP 82+ changes Note - this is not the same as 2517 which disables the API - RFP does not determine what is supported or not supported: so that entropy remains - with or without RFP, if the media config is not supported it returns false,false (so there is nothing to spoof here)	2020-11-11 18:20:13 +00:00
Thorin-Oakenpants	f7bee988de	0517: add creditCards.available / defense-in-depth see https://github.com/arkenfox/user.js/issues/1038#issuecomment-713643850	2020-11-11 18:08:06 +00:00
Thorin-Oakenpants	f2fe7f02b0	add 2624: window.name protection, fixes #1012	2020-11-11 16:59:27 +00:00
Thorin-Oakenpants	accef19af4	add LSNG, fixes #1059	2020-11-11 16:27:43 +00:00
Thorin-Oakenpants	910d7004c6	release info, fixes #1042 now we have somewhere to add things like HTTPS-Only Mode, appCache, secure downloads when we make changes that impact ESR	2020-11-11 16:12:57 +00:00
Thorin-Oakenpants	07cccd5386	remove 4003: partition, see #1051 (#1057 )	2020-11-02 17:05:40 +00:00
Thorin-Oakenpants	ac52886ea8	2422 WASM, add reason for disabling, fixes #1037 (#1054 )	2020-10-26 10:37:49 +00:00
Thorin-Oakenpants	c45780d79b	0701 PHP localhost + IPv6, fixes #1053	2020-10-26 10:34:54 +00:00
Thorin-Oakenpants	e14732aad3	2031: better reference: closes #1022 (#1048 )	2020-10-23 23:29:31 +00:00
earthlng	26d4768447	add media.autoplay.blocking_policy	2020-10-21 13:44:21 +00:00
Thorin-Oakenpants	9f99885272	clean up acknowledgments	2020-10-20 12:57:00 +00:00
Thorin-Oakenpants	0adfddd1e2	misc (#1040 ) * misc - cleanup of old release notation in comments: e.g. if it's not applicable to ESR78+ - same with default version info - simplify and save bytes on section 4700 - update 4500 header - and unify the message about using extensions as counterproductive - letterboxing - provide info on stepped ranged (and drop crap about FF67) - don't judge users who dislike seeing margins (I don't like them either, but I force my window to exact dimensions and stay there) - screenshots uploading was disabled in FF67+ : [67 release notes](https://www.mozilla.org/en-US/firefox/67.0/releasenotes/) - the pref is still there (default false) but so far I'm 99% sure this pref now does anything - I will add it to the scatchpad script if this change sticks * simplify 4500 RFP, see #1041 * update removed script * tidy readme, see #1045 - also put readme before releases * RIP FX Site Compat * clean out RFP Alts info: the information is redundant: it's already in the readme	2020-10-20 11:58:20 +00:00
Thorin-Oakenpants	f591a8adf8	82-alpha, 82 deprecated, remove old deprecated	2020-10-13 14:12:53 +00:00
Thorin-Oakenpants	0e10a820d9	81 final	2020-10-13 14:01:41 +00:00
earthlng	c90341dded	1244: HTTPS-Only mode update (#1031 )	2020-10-07 12:10:24 +00:00
Thorin-Oakenpants	d5ccf4693b	fixup font prefs vs RFP, fixes #1025 (#1028 ) - make 1401 inactive: it affects RFP's FPing - remove old warning/setup-web: we do not care about documenting breakage or FPing risks when we have a warning and they are inactive. If someone uses them, that's on them - new warnings	2020-10-06 13:43:51 +00:00
Thorin-Oakenpants	e89f9a5d89	dom.IntersectionObserver.enabled commit: `a56ba85936` issue: #1026	2020-10-02 08:36:15 +00:00
Thorin-Oakenpants	a56ba85936	remove dom.IntersectionObserver.enabled #1026 - this was made inactive in v68 - since at least FF79, when active as false, it breaks the web and browser consoles - it breaks websites - it breaks extensions: e.g. uBO panel functionality - it does nothing to mitigate possible fingerprinting (which was why it was initially added as a concern) - i.e the API only provided a standardized method, it does not stop previous/earlier workarounds	2020-10-02 08:33:27 +00:00
Thorin-Oakenpants	421f1e361c	[ ] are for for prefs only	2020-09-29 06:10:57 +00:00
Thorin-Oakenpants	2391874e04	UI setting change in 81 https://bugzilla.mozilla.org/show_bug.cgi?id=1613468	2020-09-28 19:04:08 +00:00
Thorin-Oakenpants	4779ea7850	remove CSP issue, closes #1021	2020-09-27 00:47:09 +00:00
Thorin-Oakenpants	c367beabe3	81-beta	2020-09-23 12:20:59 +00:00
earthlng	e1d336a178	standardize some error codes * 0 : successful termination * 2 : command line syntax error * 1 : catchall for general errors Plus a few text improvements based on unmerged PR `4fbb2be98d`	2020-09-15 13:36:39 +00:00
earthlng	ee3e5f0186	v4.12: arkenfox	2020-09-15 12:04:54 +00:00
earthlng	42b7650d42	v2.8: arkenfox	2020-09-15 11:58:52 +00:00
earthlng	f61d4a0d38	Update prefsCleaner.sh	2020-09-15 11:55:28 +00:00
Thorin-Oakenpants	7fe9784bf8	we no longer have github pages	2020-09-15 06:18:54 +00:00
Thorin-Oakenpants	ed05c64482	we no longer have github pages	2020-09-15 06:18:33 +00:00
Thorin-Oakenpants	16c3658040	align look with TZP	2020-09-15 06:17:44 +00:00
Thorin-Oakenpants	515d6ff874	v2.3: update repo name	2020-09-15 06:11:35 +00:00
Thorin-Oakenpants	fc65052286	migration: cleanup code references	2020-09-15 06:07:32 +00:00
Thorin-Oakenpants	6a107d4d2f	migration: cleanup code references	2020-09-15 06:06:32 +00:00
Thorin-Oakenpants	eff4b74130	migration: cleanup code references	2020-09-15 06:05:33 +00:00
Thorin-Oakenpants	2532ddcc18	update name	2020-09-15 05:59:51 +00:00
Thorin-Oakenpants	44e22835c1	update name	2020-09-15 05:58:39 +00:00
Thorin-Oakenpants	1f545312fd	update names + links	2020-09-15 05:57:30 +00:00
Thorin-Oakenpants	637e5964db	update links	2020-09-15 05:56:00 +00:00
Thorin-Oakenpants	26bca612d7	rename as arkenfox	2020-09-15 05:54:22 +00:00
Thorin-Oakenpants	6fdda5fb62	rename as arkenfox	2020-09-15 05:53:09 +00:00
Thorin-Oakenpants	ed5b158777	Rename ghacks-clear-RFP-alternatives.js to arkenfox-clear-RFP-alternatives.js	2020-09-15 05:52:28 +00:00
Thorin-Oakenpants	4c4270f1d7	migration changes	2020-09-15 04:33:50 +00:00
Thorin-Oakenpants	af51631597	Update LICENSE.txt	2020-09-15 04:19:03 +00:00
Thorin-Oakenpants	ae0c980d25	migration	2020-09-15 04:15:03 +00:00
earthlng	3e4c56cf27	arkenfox support also fixes mixed line endings	2020-09-13 12:16:21 +00:00
Thorin-Oakenpants	18112f9ae8	last F time :) update TZP links	2020-09-11 21:55:12 +00:00
Thorin-Oakenpants	c8eee094e0	update links	2020-09-11 03:23:55 +00:00
Thorin-Oakenpants	78a7c194eb	update ref links	2020-09-10 07:33:50 +00:00
Thorin-Oakenpants	f606c8b866	2203 values see https://bugzilla.mozilla.org/show_bug.cgi?id=1663500 where they reverted https://bugzilla.mozilla.org/show_bug.cgi?id=1661643 where they said value 1 didn't do anything - all changes in FF82, so nothing to see here folks ... move along	2020-09-08 23:49:22 +00:00
Thorin-Oakenpants	9c98972d14	misc2 (#1010 ) * forceMediaMemoryCache breakage * add back ESR68-EOL for prefsCleaner users	2020-09-05 15:42:34 +00:00
Thorin-Oakenpants	75a03df0f7	miscellaneous (#1007 ) - less active prefs - now that ESR68 is EOL, at least a whopping two (0602, 1273) - also I don't know when the default changed - another whopping whole one (1240) - and where we do enforce/reset a pref to default, lets say that - this is not a definitive list, sing out if there is anything else - IPv6 info - especially for Iron Heart who likes to claim that this pref breaks 5% of sites - cleanup of settings tags now we only care abut ESR78+	2020-09-05 15:20:46 +00:00
Thorin-Oakenpants	76019e6fbe	ESR78 unhidden prefs also, the note about WebExt + SVG only applies to people using outdated versions .. so that can go too	2020-09-03 13:27:25 +00:00
Thorin-Oakenpants	3c2bd930c3	start 81-alpha, EOL for ESR68	2020-09-03 13:11:16 +00:00
Thorin-Oakenpants	ed993d5502	80 final	2020-09-03 13:04:31 +00:00
Thorin-Oakenpants	22d2d702be	1409: obsolete RFP mention	2020-09-03 13:02:09 +00:00
Diogo Agostinho	8dacf6e91f	fix typo (#1005 )	2020-08-31 21:47:57 +00:00
Thorin-Oakenpants	fbe1d48fe2	2203: open_newwindow values - FYI: https://bugzilla.mozilla.org/show_bug.cgi?id=1661643 - https://hg.mozilla.org/integration/autoland/rev/12d62b074178	2020-08-31 19:49:00 +00:00
Thorin-Oakenpants	5fd7f6de7e	80-alpha	2020-08-28 18:27:20 +00:00
h88e22dgpeps56sg	592b959c24	Updater.sh rework 2 (#1000 ) * rework DOWNLOAD_METHOD, download_file, open_file * remove legacy command leftover line * return empty string if download fails and return/exit if this happens and show error message * fix IFS var typo * bump version * add quotes Co-authored-by: TotallyLeGIT <bbkqx24kxlgvgbss@mailban.de>	2020-08-28 10:51:15 +00:00
Thorin-Oakenpants	c6f53c8768	2201 deprecated (dead prefs removed in 82), #979 (#1002 )	2020-08-26 11:28:47 +00:00
Thorin-Oakenpants	38d772e4c8	https-only mode updates (#1001 )	2020-08-25 14:59:41 +00:00
Thorin-Oakenpants	cfce521919	1409: RFP changes in FF81+ (#998 )	2020-08-23 14:37:18 +00:00
Thorin-Oakenpants	a5ab3e23d6	Update README.md	2020-08-22 22:16:27 +00:00
h88e22dgpeps56sg	b3eee6c9fd	improve readability, remove lots of unnecessary echo commands, remove legacy arguments (#997 ) Co-authored-by: TotallyLeGIT <bbkqx24kxlgvgbss@mailban.de>	2020-08-22 12:07:13 +00:00
Thorin-Oakenpants	8d6d17d46b	1244: HTTPS-only mode: FF80+ site exceptions The option is not shown if https-only-mode is not being applied. I tested with `http://asmjs.org/` since it doesn't redirect/upgrade to secure.	2020-08-21 21:05:08 +00:00
Thorin-Oakenpants	9a37e1340c	0905: add reference, #982	2020-08-20 17:18:22 +00:00
Thorin-Oakenpants	f1e0203ef4	0105b, cleaner value, see #992	2020-08-15 01:56:01 +00:00
Thorin-Oakenpants	726d5bde30	0105b: stop console error, closes #992	2020-08-14 14:12:28 +00:00
Thorin-Oakenpants	f9f0fffd27	Update README.md	2020-08-14 09:01:14 +00:00
Thorin-Oakenpants	93840ca181	0602 not hidden in ESR78	2020-08-13 15:37:25 +00:00
Thorin-Oakenpants	99aa5af356	password master->primary	2020-08-13 15:34:26 +00:00
Thorin-Oakenpants	0358fdac8b	80-alpha	2020-08-13 15:32:45 +00:00
Thorin-Oakenpants	815c3026b5	79 final	2020-08-13 15:30:36 +00:00
Thorin-Oakenpants	5ed3047b7a	references cleanup	2020-08-13 15:22:38 +00:00
Thorin-Oakenpants	e16ede1cdf	79-beta	2020-08-13 14:44:27 +00:00
Thorin-Oakenpants	6905187b3e	0207/0208: region/search (#989 )	2020-08-13 04:39:38 +00:00
Thorin-Oakenpants	172118e61b	RFP+Alts: fixup sequential numbering, see #987	2020-08-05 01:35:10 +00:00
Thorin-Oakenpants	8452edb94b	4600: see #987	2020-08-04 10:25:29 +00:00
Thorin-Oakenpants	0f6957bbd4	4600: add missing version section	2020-08-04 10:18:29 +00:00
Thorin-Oakenpants	8c2bcc0352	1007: bump to 64mb, see #941	2020-08-03 22:50:58 +00:00
earthlng	bc832575d8	1003: kibibytes	2020-08-03 14:52:21 +00:00
Thorin-Oakenpants	c4b7e07691	4500: site partitioning	2020-08-02 01:47:48 +00:00
Thorin-Oakenpants	58fb1db838	HTTPS-Only Mode UI	2020-08-02 01:27:30 +00:00
Thorin-Oakenpants	2809854802	font visibility / RFP (#985 )	2020-08-01 11:03:17 +00:00
Thorin-Oakenpants	091a71aade	browser.urlbar.usepreloadedtopurls.enabled	2020-07-29 02:22:09 +00:00
Thorin-Oakenpants	117ab133b1	remove 0809 not deprecated, just hidden: default is false anyway	2020-07-29 02:19:20 +00:00
Thorin-Oakenpants	c4a06c4689	missing comma	2020-07-23 12:23:14 +00:00
Thorin-Oakenpants	0d27689c64	update to ESR78 and this time add the file extension	2020-07-23 12:22:20 +00:00
Thorin-Oakenpants	771e57480a	Delete ghacks-clear-RFP-alternatives	2020-07-23 12:21:10 +00:00
Thorin-Oakenpants	f8fd03482d	79 deprecated	2020-07-23 11:19:49 +00:00
Thorin-Oakenpants	10cc1224d0	Create ghacks-clear-removed.js	2020-07-23 11:00:23 +00:00
Thorin-Oakenpants	52926cca7a	Delete ghacks-clear-[removed].js	2020-07-23 10:59:19 +00:00
Thorin-Oakenpants	be64819ce7	update to ESR78	2020-07-23 10:58:22 +00:00
Thorin-Oakenpants	24c228df92	update to ESR78	2020-07-23 10:57:12 +00:00
Thorin-Oakenpants	892b3d9d69	Delete ghacks-clear-FF68inclusive-[deprecated].js	2020-07-23 10:53:38 +00:00
Thorin-Oakenpants	df21798b81	Delete ghacks-clear-FF68inclusive-[RFP-alternatives].js	2020-07-23 10:53:25 +00:00
Thorin-Oakenpants	46d03279d3	79 start, fixup 2429 default info	2020-07-22 12:35:13 +00:00
Thorin-Oakenpants	fe0af3bb34	remove 0709 duplicate, 78 final	2020-07-21 10:40:01 +00:00