01-31-2021, 09:40 PM
The fault lies in linux-generic 4.4.0.202 and its dependent packages. They break not only Firefox, but also Install Updates and Lite Tweaks, so far as I can tell. Lessons learned: do not install updates blindly, and make a restore point before doing them. The solution for me was to go back to the most recent restore point, unfortunately a few months old, then update packages in small groups using the Install/Remove Software, making a restore point after each update. Now only four packages 4.4.0.202 are left, and I am not touching them. But Firefox works.
This is a serious bug in the basic Linux packages. Should maybe be referred to another forum.
This is a serious bug in the basic Linux packages. Should maybe be referred to another forum.