ConfigFox: Easy configuration and customization of Firefox about:config settings

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All Firefox users are aware that Firefox is highly customizable as open source software – in fact, you can control both small and large features. But to do all this, we need access to about:config.

Tool to optimize Firefox on:config settings

July 2020 Update:

We now recommend using this tool for your error. Additionally, this tool fixes common computer errors, protects you against file loss, malware, hardware failures and optimizes your PC for maximum performance. You can fix your PC problems quickly and prevent others from happening with this software:

  • Step 1 : Download PC Repair & Optimizer Tool (Windows 10, 8, 7, XP, Vista – Microsoft Gold Certified).
  • Step 2 : Click “Start Scan” to find Windows registry issues that could be causing PC problems.
  • Step 3 : Click “Repair All” to fix all issues.


To use ConfigFox, you must of course have Firefox installed on your computer or the program will cause errors. ConfigFox comes with a collection of useful Firefox settings that are disabled by default, all these settings can be changed with the software. The parameters cover some of these categories:

  • Commissioning
  • Automatic updates
  • Position bar, Search, Automatic suggestions, History
  • Cache
  • SSL, OCSP, Certificates, Encryption, http
  • Connections
  • Connections
  • Media
  • Camera
  • JavaScript and DOM

The best part of the software is that you can even add a setting of your choice manually, but to do this you need to know the Firefox and user preference strings. js created by Firefox. On the first run of ConfigFox, would show you the settings for the default profile, you can easily change the profiles by going to’File’ and then’Open Profile’. You can even create new profiles and run Firefox under these profiles. Profiles are useful when you need different configurations for different activities.

ConfigFox comes with built-in backup and restore capability for your data, you can easily export the file’user.js’ which is responsible for managing all configurations. ConfigFox comes with three additional built-in tools, namely :

  • SQLite databases under vacuum: Clean.sqlite files in your profile folder
  • Defragment profile folder : Defragment profile folder for better performance (HDD only)
  • Backup profile : compresses the entire profile to in profile folder

Overall, ConfigFox is an excellent utility with amazing features. It comes with a very good collection of configurations and the ability to add configurations manually allows you never to feel out of customization. The user interface is pleasant and easy to use and the many built-in features such as backup and defragmentation make the software worth downloading. ConfigFox is a portable utility and requires no installation.

ConfigFox free download

Click here to download ConfigFox for your Windows PC.

See Mania Configuration and Panel Tweaks for Firefox.

RECOMMENDED: Click here to troubleshoot Windows errors and optimize system performance