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
259356 - (xdg-basedir) Support for the Freedesktop. org XDG . . . Since it's asking that we locate the profile and default download directory based on env vars, things which Firefox and Seamonkey do separately, choosing different places, there's no single place to cover both products Assignee: bugs → nobody Component: General → OS Integration Product: Mozilla Application Suite → Firefox
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