I love Firefox, but since I upgraded from 28 to 29, it has been crashing for me on Win 7 on a daily basis. Looking in about:crashes I have close to 30 crashes reported. The moment I upgraded to 30, it crashed. sigh
Same problem here, daily crashes. This started with Firefox 28 and I still have this problem with Firefox 30. I have no idea why, but some pages crash more often than others.
This happened on both OSX and Ubuntu(my laptop and workstation) at the same time when Firefox 28 was introduced.
You're not alone. I went years and years having Firefox never crash without an obvious reason (like a problematic page or plugin), but recently I've been having it crash once a day or so even with all plugins/addons disabled.