June 13, 2013

A Firefox Guide: Everything you need to know about your fox


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

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)

    Save a PNG image of the entire web page:
    screenshot --fullpage

    Save a PNG image of the visible window only:
    screenshot

    Restart the browser:
    restart

    Show all of the available commands: 
    help

5. 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
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