Has been happening for about two weeks now. Firefox crashes whenever I receive a facebook message while it is opened in a tab. It still happens in safe mode. All my drivers are up-to-date and my firefox + extensions are uptodate I've tried reinstalling flash, clearing cookies/history, and reinstalling firefox and it still happens (but when i reinstalled firefox, i did the backup/restore thing that restored everything so I have not tried a true clean install.) Thanks.