Sorry to hear about the crashes and thank you for the report IDs. The first 8 reports have one of two signatures. Neither shows reports from earlier versions of Firefox, which is interesting. I'm not sure anyone else is reporting them other than you. In case, the crash had lingering effects, have you tried shutting down and restarting Windows to see whether that helps with this problem? If that doesn't help, I would be inclined toward: '''Clean Reinstall''' We use this name, but it's not about removing your settings, it's about making sure the program files are clean (no inconsistent or alien code files). As described below, this process does not disturb your existing settings. It's not essential to uninstall Firefox, but you can if you like, saying No to any request about removing personal data. It only takes a few minutes. (A) Download a fresh installer for Firefox to a convenient location: https://www.mozilla.org/firefox/all/ (B) Exit out of Firefox (if applicable). (C) Using Windows Explorer/My Computer, rename the program folder as follows (you might have one or both): C:\Program Files (x86)\Mozilla Firefox =to=> C:\Program Files (x86)\OldFirefox C:\Program Files\Mozilla Firefox =to=> C:\Program Files\OldFirefox (D) Run the installer you downloaded in step (A). It should automatically connect to your existing settings. Any improvement?