Latest versions of the browser and email — just released today.

Any comments on observations, issues?

Nope. Just thought, because of the various discussions going on at the moment, that it might be appropriate to note ... for those who might need a nudge to try them out.
If not, delete the thread.

Thread's fine, I'm just interested in anything you as a user might have to say about the latest FF version.

As far as I can tell (in both FF and TB) there are some minor tweaks, cosmetic changes and a few security fixes (which don't affect anything I do). Otherwise they're pretty much the same as v.11.