Hmm, the crash id you gave doesn't seem to be working. Let's try to diagnose here without it. What I'll ask you to do first, is to update your graphics driver. Out of date graphics software can sometimes cause weird crashes with newer versions of Firefox. If you read [https://support.mozilla.org/en-US/kb/how-do-i-upgrade-my-graphics-drivers https://support.mozilla.org/en-US/kb/how-do-i-upgrade-my-graphics-drivers], it gives you directions for the various graphics manufacturers on how to update your drivers. If after updating your graphics drive, Firefox 11 is still crashing, I'm going to ask you to start Firefox in [[Safe Mode|Safe Mode]]. Sometimes extensions can trigger crashes, and testing with Safe Mode will help eliminate that from the equation. Let me know how these steps work for you. The [[Firefox crashes|Firefox crashes]] also provides some help as well.