Free Software To Extend Firefox Settings To Apply Extra Tweaks

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ConfigFox is a free software for Windows to apply some tweaks in Firefox that are not offered by Firefox itself. You can use it to disable browser auto-update, set “Do Not Track” HTTP header, disable confirm exit when multiple tabs open in Firefox, and many other tweaks. There are some settings that can help you improve your security and privacy in Firefox like disable location aware browsing, disable geo-based IP search results, etc. The best part is that it is quite easy to use and you can also create multiple Firefox settings profile for a user, and launch Firefox with a user preference profile straight from the interface of this Firefox Settings tweaker.

Free Software To Extend Firefox Settings To Apply Extra Tweaks

Also See: How to prevent others to download files in FirefoxMicrosoft Edge theme for Firefox, Firefox Addon to backup addons settings.

How you can use ConfigFox to create multiple Firefox profiles and apply tweaks not available in Firefox:

Download ConfigBox from the link at the end of this review and then execute its EXE file. This will launch the main interface of ConfigFox. It first prompts you to specify the path of Firefox.exe that you can find in “C:/Program Files/ Mozilla”. Next, it will ask you create a User.js file in which all your Firefox preferences will be saved. Click on the Yes button and it will auto-generate the User.js file, as shown in the screenshot below.

Free Software To Extend Firefox Settings To Apply Extra Tweaks
Now, you will see the additional Firefox settings under different categories like Tabs, Tweaks, Auto Updates, etc. Again nothing tricky here, just enable the checkboxes and save your Firefox profile from “File >> Save user.js” option. This will apply the selected settings to your Firefox user profile. Now, simply run Firefox with your current user profile from Tools>>”Run Firefox with current profile” option. If you want to create another user profile for Firefox, then select “File >> Create a new Firefox profile..” option.
Free Software To Extend Firefox Settings To Apply Extra Tweaks

Extra Tools in ConfigFox:

  • Vacuum: clean .sqlite files in your profile folder reducing file size.
  • Defrag: Defrag the Firefox user profile folder.
  • Backup: Save your Firefox user profile as a ZIP file.
  • Dummy files: Improve performance and privacy.
  • Profile Manager: Launch your Firefox with a single click.

Some of the tweaks offered by ConfigFox are:

  • Startup:
    • Disable startup checks
    • Skip checking of browser’s current milestone.
  • Auto Updates:
    • Disable browser auto-update.
    • Disable search plugins auto-update, etc.
  • Privacy:
    • Disable telemetry.
    • Disable hello.
    • Disable social features, etc.
  • SSL, OCSP, Certs, Encryption, HTTP:
    • Set “Do Not Track” HTTP header.
    • Disable referrer from SSL website, etc.
  • Plugins:
    • Set default plugin state to ask to activate.
    • Remove plugin finder service.
    • Disable scanning for plugins, etc.
  • Media, Camera, Mic:
    • Disable WebRTC.
    • Disable video statistics fingerprinting vector, etc.
  • JavaScript & Dom:
    • Disable DOM storage.
    • Disable user timer API, etc.
  • Cache:
    • Disable disk cache.
    • Disable offline cache.
    • Disable storing extra session data.
  • Tabs:
    • Disable new tab preloading, ads.
    • Limit history per tab, etc.
  • Tweaks:


ConfigFox is a free software for Windows to apply some extra security, privacy, and other tweaks in Firefox that are not supported or provided by Firefox itself. It’s definitely a must have utility for all Firefox users as they can do a lot of extra things in Firefox with it. In addition to this, you can also create multiple settings profile for Firefox and even create their shortcut on Desktop for quick access. Do check it out and let me know how useful was it for you and what tweaks were most important :)

Get ConfigFox.

Editor Ratings:
User Ratings:
[Total: 2 Average: 5]
Works With: Firefox
Free/Paid: Free

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