A recent update to Firefox has made my profiles unusable, and they were already indecipherable. So I want to revert to a previous version and create readable backups of my bookmarks, and take note of active Addons.
The bookmarks list is quite long, and is essential to my workflow and failing memory.
So: is there a way to revert? What's the latest version before the format change?
I'm on Xubuntu 20.04.5 with .deb Firefox. I have older installs in other directories, but they are VERY old. I have backups, but they are also quite old at this point -- at least a year.