If you can't be bothered to explain everything, then we can't be bothered to help you. It's that simple.
I was about to mention that... 'course my I didn't exactly know about this topic till only a couple of minutes ago, so there.Also, upgrade to 3.0.2 and update all your addons that have updates available.
Most of the time, Firefox just gets closed inadvertantly on my end. I therefore wind up with a message saying: Firefox was closed unexpectedlyGo to Tool, options, General. There should be pop down box at the top of that window, "When Firefox Starts:" alter that setting. It's Set it to "load my windows and tabs from last time."