I have been using FF for decades. I was using Netscape before. But I am getting fed up with glitches piling up. The last is the Windows menu being now sorted alphabetically. I am not the only one with this issue. With several sites I need to use Safari instead because FF either can't display them correctly or even can't at all.
I will regret it but I am considering to switch I don't yet know to what.
With the windows menu it's a final decision of the developers team. OK, users' vote don't count, I'll vote with my feet.