9 about:config Hack to Make Mozilla Firefox Faster

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Some say Mozilla Firefox is better, while others say Google Chrome is. Whatever it is, the best browser is the one you find the most user friendly, for that reason I prefer Firefox over Chrome and Internet Explorer.

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Speed is not an issue, it doesn’t make any difference if the site is 1 second faster over another. However, if you are using a very slow computer, especially those in your work office where you have no say in the hardware, you might find these simple hacks useful.

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mozilla firefox about config

firefox hack

Reduce RAM usage to 10mb when Firefox is minimized

    Name: browser.sessionhistory.max_total_viewers
    Value: Set to ‘0’

Disable the Delay When Installing New Extensions

    Name: config.trim_on_minimize
    Value: Set to ‘True

Increase the Speed in Which Firefox loads pages

    Name: network.http.pipelining
    Name: network.http.proxy.pipelining
    Value: Set to ‘True’

Increase the number of simultaneous request for a page to 10

    Name: network.http.pipelining.maxrequests
    Value: Set to ’10’

Reduce the time to act when firefox receive the request

    Name: nglayout.initialpaint.delay
    Value: Set to ‘0’

Give Bookmarks Higher (or Lower) Weight in the Awesomebar Suggestions

    Name: places.frecency.unvisitedBookmarkBonus
    Value: default 140, higher value means higher rank for bookmarks

Reduce the amount of RAM Firefox uses for it’s cache feature

    Name: browser.sessionhistory.max_total_viewers
    Value: Set to ‘0’
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Open Search Results in a New Tab

    Name: browser.search.openintab
    Value: Set to ‘True’

Disable Compatibility Checking for Extensions

    Name: extensions.checkCompatibility
    Value: Set to ‘False’


  1. Gravatar
    Samuel [ Reply ]

    Useful info, thank you.

  2. Gravatar
    KRIS KAIN [ Reply ]

    Thanks, I couldn’t find a few of them but the ones I was able to change did speed up Firefox.

    • Gravatar

      kris, you make them if they are not there
      if its true or false you right click & make a new Boolean entry—if its a number like 10 you right click & make an integer entry, you can right click in or near the “value” heading

  3. Gravatar
    Britec [ Reply ]

    These are old tweaks and some have been made obsolete.

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