Firefox nur noch auf Englisch nach letzten Update

[Wollie]

Hier ist ein Lösungsvorschlag:

[Stable Update] 2021-09-16 - Kernels, Steam, Pipewire, Firefox, Thunderbird, Pamac, Pacman

The language issue in Firefox got worse with the update from this morning, mixing entries in English and French. After a few tests, it appeared the issue came from the settings in my profile, as creating a new profile has everything in French as it is supposed to be. After some tweaking, i managed to come back to a fully French output: in Settings > General > Language, remove all French language entries close Firefox make a backup copy of your profile folder (~/.mozilla/firefox/???.default) o…