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Mozilla Firefox configuration data
File type: Configuration file
An mozconfig file extension is related to the Mozilla Firefox and Thunderbird software. An mozconfig file stores configuration.
File type category:
Configuration file
Date updated: June 27, 2025
The mozconfig file extension is associated with the Firefox a web browsing tool for Microsoft Windows, Apple Mac OS X (macOS) and Linux operating systems developed by Mozilla.
The mozconfig file stores some configuration data for Firefox (also can be used by Thunderbird e-mail client).
Probably not meant to be accessed by the user.
Probably cannot be converted to anything else.
Software apps that manage or store settings in mozconfig files:
Microsoft Windows
Apple macOS / Mac OS X
Linux/Unix