Sorry to hear about the crashing, and thank you for the reports. The first one looks like Firefox crashed an Intel graphics driver during a video-related task. Could you check for graphic driver updates? The following article suggests safe ways to do that: [[Upgrade your graphics drivers to use hardware acceleration and WebGL]]. The other five involve "Out of memory" errors, indicating that Windows refused to allocate memory to Firefox on request. This doesn't necessarily mean that memory is completely full; it can indicate that it has become very fragmented. It also could mean that Firefox has a bug in how it made the request, or some other memory-handling bug. If you can work without add-ons, you could test in Firefox's Troubleshoot Mode. In that mode, Firefox temporarily deactivates hardware acceleration, any userChrome.css/userContent.css files, and some other advanced features to help you assess whether these are causing the problem. ''If Firefox is running:'' You can restart Firefox in Troubleshoot Mode using either: * "3-bar" menu button > Help > Troubleshoot Mode... * (menu bar) Help menu > Troubleshoot Mode... and OK the restart. A small dialog should appear. Click the Open button. ''If Firefox is not running:'' Hold down the Shift key when starting Firefox. (On Mac, hold down the option/alt key instead of the Shift key.) A small dialog should appear. Click the Open button. ''Note: Don't use the Refresh without first reviewing this article to understand what will be deleted:'' [[Refresh Firefox - reset add-ons and settings]]. Any improvement in stability? Ref. [[Diagnose Firefox issues using Troubleshoot Mode]]