@lifeflame Uninstalled and reinstalled, and so far it looks good. However, I didn’t really need the link you sent. I started with that, and wound up confused, as I never could access the file I downloaded. So, I just cold cocked TB (and Firefox by mistake!) then reinstalled both, and everything came back up with my files intact. It maybe that the TB back up file I installed did that for me, but I just couldn’t tell.
Anyway, it sure looks like things have improved a LOT! Thanks so much!