Just noticed Thunderbird made an even larger version number jump, also to 7.0.1, presumably to stay in balance with Firefox.
I haven't noticed any problems, or even much difference, with FF 7 so far. The one thing I did notice right away I was very pleased with: They returned to giving focus to the address bar when opening a new tab/window. That was annoying to have to manually switch focus every time.
Still waiting for them to include a filter or search in the cookies allow/block list. It's a pain to have to scroll through it when you discover a certain blocked site needs to be unblocked.
_________________________
( o_
/ >) My 84-year-old non-techy mom uses Debian Linux. It ain't that hard.