I've been using 131.03 for a day or so and it hasn't crashed once up to now. The release notes to 131.03 state that a few bugs have been fixed, so maybe it's ok now.
Downgrading firefox is a pain, but it can be done. Uninstall, reboot, install older version, make new profile by pointing at old folder. I found some info on how to do it but it did involve a bit of trial and error. Be much easier if it was fixed!
Installing an older version of Firefox and keeping settings was a bit of a challenge, but I have managed to go back to v129.02 which seems fine. I'll stay with this version until I am confident that the bug(s) have been ironed out.
Same here. Since 130.01, Firefox randomly closes without warning. Version 131 hasn't made any difference. I don't use avast or watch much utube. I have used Firefox for years and have never experienced anything like this before.