switched to trying to use firefox 3.6 with my latest snap upgrade and I've noticed a bug. The address bar has a tendency to stop responding to key presses until I click in it again. I can type a few letters, it will auto suggest something, I get in maybe one more letter, and then it's stuck. Neither keys nor backspace have any effect. If I click in the address bar, it wakes up and I can type some more letters.
I'm not positive that it only happens after auto suggest, but it's strongly correlated. Type something in, get a few suggestions, then type something that doesn't match, and boom. Have only observed this behavior in ff 3.6 in the address bar. No other programs (ff 3.5 included) or windows, but it's only been a day or so.