Package: firefox Version: 94.0-1 Followup-For: Bug #998108 Same here, problems started with 93.0-1+b1, and are also present on FF 94.
Firefox hangs at random times, doesn't quit properly preventing normal restart, doesn't recognize audio devices correctly. As others noted, FF hangs almost instantly for me when using anything involving media (audio/video playback). --safe-mode doesn't change anything. Disabling all flags for HW acceleration doesn't do anything either. Downgrading to 93.0-1 on the same system fixes the issue.