Having problems with the latest Firefox

The latest version of Firefox(2.0.0.6) has been causing all sorts of problems for me. It just crashed for the third time tonight when I pressed ctl-w to close a tab. I’ve been a diehard Firefox supporter for many years now and this is the first time that I’ve really been unhappy with the way that it’s preformed. I hope that the Firefox dev team can get things back on track quickly.