I'm so used to installing I just weigh the time to fix against a reinstall, and which ever is faster I do. I rarely have had to reinstall due to any problems though. Although I'm running the Ubuntu development and did a upgrade that included blocked stuff for a partial upgrade, and lost the gnome-shell desktop. The clone took about ten minutes to load, and another five minutes to get the home caught up.
FF is a acronym for Firefox.
So we were posting simultaneously, lol was it as good for you as me. It looks like you have fixed it.