1. Which Firefox should I get?
There are a number of Firefox forks other than the ones shown here, but these are probably the most popular.
The most stable, tried, tested, used by millions
Very stable with the latest features
"The newest innovations in an experimental environment"
Nightly (pre-alpha)
"These builds are for testing purposes only"
Custom-built and optimized for Windows operating systems
High performance browser specifically for Windows 64-bit systems to enhance speed
2. Fixing Firefox
Disable and/or delete useless plugins:
Disable: Firefox > Add-ons > Plugins > Disable
Delete: Right-click plugin > Show More > "File" (find and delete)
How to restart Firefox in Safe Mode (addons disabled, default theme, default toolbar settings):
Firefox > Help > Restart with Add-ons Disabled
How to reset Firefox to its default state:
Firefox > Help > Troubleshooting Information > Reset Firefox
Create a new profile:
Run: firefox.exe -p
Terminal: firefox -p
Disable: Firefox > Add-ons > Plugins > Disable
Delete: Right-click plugin > Show More > "File" (find and delete)How to restart Firefox in Safe Mode (addons disabled, default theme, default toolbar settings):
Firefox > Help > Restart with Add-ons DisabledHow to reset Firefox to its default state:
Firefox > Help > Troubleshooting Information > Reset FirefoxCreate a new profile:
Run: firefox.exe -pTerminal: firefox -p
3. about:pages
about: Displays your useragent string
about:about Displays all of the about pages
about:buildconfig Displays configure args
about:cache Lists cache entries
about:compartments Shows JS mem
about:config Displays a settings interface
about:crashes Displays all Firefox crashes
about:healthreport Start up times
about:home Displays the home page
about:memory Shows memory
about:permissions Edit site permissions
about:privatebrowsing Private browsing mode
about:support Prints all add-ons
about:telemetry Performance and usage
about:mozilla Easter egg
about:robots Easter gg
4. Firefox command line (shift+F2)
screenshot --fullpageSave a PNG image of the visible window only:
screenshotRestart the browser:
restartShow all of the available commands:
help5. userChrome.css
/* No Firefox Button */
#appmenu-button{display:none !important;}
/* No load progress indicator */
.tab-throbber{display:none !important;}
/* No horizontal scrollbar */
#content browser{margin-right:-14px !important;
overflow-y:scroll; overflow-x:hidden;}
/* No site favicon */
.tab-icon-image{display:none !important;}
/* No "X" button to close tab */
.tab-close-button{display:none !important;}
/* No auto-complete arrow on location bar */
.autocomplete-history-dropmarker{display: none !important;}
/* To make your own userChrome.css tweaks, find elements using the DOM Inspector on "chrome://browser/content/browser.xul" */
6. about:config tweaks
Turn off the new tab page, and makes it about:blank:
browser.newtab.url => about:blank
Turn off Geolocation:
geo.enabled => false
Turn off file virus-scan after download:
browser.download.manager.scanWhenDone => false
Override the useragent to most common useragent (not needed with Blender/UA Switcher):
New > string: general.useragent.override =>
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:20.0) Gecko/20100101 Firefox/20.0
Force installation of non-updated add-ons:
New > boolean: extensions.checkCompatibility.[version #] => false
Disable prefetching (preloading of pages), which lowers RAM usage:
network.prefetch-next => false
Override location bar search (pick only one):
keyword.url => "https://duckduckgo.com/html/?q="
keyword.url => "https://startpage.com/do/search?q="
Load plugins when you click them (instead of automatically):
plugins.click_to_play => true
Enable HTTP pipelineing regularly, on SSL pages, and on proxies, respectively:
network.http.pipelining => true
network.http.pipelining.ssl => true
network.http.proxy.pipelining => true
Increase the amount of connections/requests Firefox will make:
network.http.pipelining.maxrequests => 64
network.http.max-connections => 512
network.http.max-persistent-connections-per-server => 32
Speed up the security delay when installing add-ons:
security.dialog_enable_delay => 500
Disable tab animations:
browser.tabs.animate => false
Put cache on RAM:
browser.cache.memory.enable => true
browser.cache.memory.max_entry_size => -1
browser.cache.disk.enable => false
browser.cache.disk.parent_directory => /tmp/firefox
Reduce page loading delay:
New > integer: nglayout.initialpaint.delay => 0
New > boolean: content.interrupt.parsing => true
New > boolean: content.notify.ontimer => true
New > integer: content.max.tokenizing.time => 100000
New > integer: content.notify.backoffcount => -1
New > integer: content.notify.interval => 100000
New > integer: content.switch.threshold => 2000000
Remove submenu slide delay:
New > integer: ui.submenuDelay => 0
Set a "do-not-track" header to tell sites not to track browsing habits:
privacy.donottrackheader.enabled => true
Disable all Firefox storage settings:
privacy.donottrackheader.enabled => true
Disable Google Blacklists:
browser.safebrowsing.enabled => false
browser.safebrowsing.maleware.enabled => false
Disable prefetching:
network.prefetch-next => true
Disable pings:
browser.send_pings => false
browser.send_pings.require_same_host => true
Disable suggestions on searchbar:
browser.search.suggest.enabled => false
Disable keywords:
keyword.enabled => false
Disable certificates:
browser.ssl_override_behavior => 2
Disable DNS proxy bypass:
network.proxy.socks_remote_dns => true
Disable crash reporting:
In application.ini in the Firefox folder,
[Crash Reporter]Enabled=1 => [Crash Reporter]Enabled=0
