Hi, It's kind of hard for me to explain my exact problem because there are a variety of symptoms which show up in all kinds of circumstances. Basically I usually have a lot of Firefox windows and tabs open, with things like Facebook, flash games (Kongregate), Youtube etc. When I start Firefox everything works fine. After a while things start to slow down. After some more time tabs become unresponsive, don't refresh graphically (that is, if I scroll down, I get ghosts of how the screen appeared before scrolling), sometimes the whole screen becomes black or white. After some more time either Firefox crashes, or has become so unresponsive that I have to shut the whole thing down. Then I restart it and everything works fine... Until the next time. Here are a few recent crash reports that might help shed some light on the problem: https://crash-stats.mozilla.com/report/index/6d6bb1de-4ee0-4dcc-a450-b56db0170524 https://crash-stats.mozilla.com/report/index/4de6ad7a-0f18-4d6b-b596-1b6b00170524 https://crash-stats.mozilla.com/report/index/c5adcbe9-f914-4388-9bca-ec2260170524 I'll appreciate any help. Thanks.