ConfigFox is a lightweight, open-source Windows utility designed to help users manage and tweak Mozilla Firefox’s hidden, advanced configuration settings.
Instead of forcing users to manually navigate Firefox’s daunting and warning-filled about:config interface, ConfigFox provides a clean, single-window graphical user interface (GUI) to toggle deep privacy, security, and performance options with one click. How ConfigFox Works
When you change settings in Firefox via about:config, those modifications are written directly to your active profile’s prefs.js file. ConfigFox bypasses this internal menu by generating and editing a user.js file inside your Firefox profile directory.
The Override System: A user.js file acts as a master override blueprint. Every time Firefox launches, it reads the instructions in user.js and applies them cleanly over your configuration.
The Master Collection: ConfigFox comes packaged with a pre-curated collection of settings (default.js) focused heavily on disabling telemetry, blocking tracking, and tightening security. Core Features
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