The menu problem re-occurs Rated 4 out of 5 stars
Hi, when I received your reply today, I immediately checked the menu and the Personas items are listed properly. However, after restarting Firefox, the menu is null again. Closing Firefox entirely and relaunching it did not make the items reappear.
I'm wondering that the menu was normal because yesterday I just upgraded my Firefox from 12.0b4 to 12.0b5, and maybe the first launch after any upgrade will get the menu right, but the fix is not sustained after further restarts... just my theory.
I'll test further using new profiles and disabling other add-ons, which step I should have done!