Firefox 147 Will Support The XDG Base Directory Specification Firefox 147 Will Support The XDG Base Directory Specification Written by Michael Larabel in Mozilla on 20 November 2025 at 08:19 AM EST 47 Comments A 21 year old bug report requesting support of the XDG Base Directory specification is finally being addressed by Firefox
Firefox is fixing a 21-year old problem on Linux - How-To Geek As part of the upcoming release of Firefox 147, Mozilla has resolved a bug report about missing support for Freedesktop's XDG Base Directory standard The report had been open for a whopping 21 years, and the fix will make Firefox installation files cleaner and more organized
Firefox 147 Will Support The XDG Base Directory Specification The XDG Base Directory specification lays out where application data files, configuration files, cached assets, and other files and file formats should be positioned within a user's home directory and the XDG environment variables for accessing those locations
Firefox is fixing a 21-year old problem on Linux - Nsane Forums As part of the upcoming release of Firefox 147, Mozilla has resolved a bug report about missing support for Freedesktop's XDG Base Directory standard The report had been open for a whopping 21 years, and the fix will make Firefox installation files cleaner and more organized Bug 259356, created
Firefox switches to using ~ . config mozilla directory on . . . The Firefox codebase that will form the basis for Firefox 147 on January 13th has been updated to use the "~ config mozilla" directory by default for storing profiles, add-ons, settings, and internal databases on UNIX-like systems (the cache had already been moved to "~ cache mozilla") This change was made to ensure the browser complies with the Freedesktop org XDG Base Directory