Comment 4 for bug 220541

Same here. FF3b2 and b3 were pretty stable, b4 and b5 have been horrendous with Gmail and other AJAX-heavy sites. I find that Firefox tends to crash mainly when I'm working with multiple tabs: for example when I'm loading one tab and closing another simultaneously - particularly if Gmail is open on a third tab. This behaviour is unacceptable. I crash around 10 times a day, and I'm switching to Epiphany until this is sorted out.