I've been struggling for months/years with tabs crashing. I just figured it was my particular combination of installed extensions and the websites I frequented because certain sites tended to crash tabs pretty often (e.g., HomeDepot.com), while others didn't (e.g., Lowes.com). However, I'm working more hours per day on my PC and have had the app crash multiple times in one day so I figure it's time to try fixing it. So... I made sure that Windows, FF, and my device drivers are up to date. I ran two separate malware/virus scans. The only third-party modules loading are from Intel (it's an Intel CPU and graphics adapter). I ran FF in Troubleshooting Mode, and the tab crashes continued, as well as an app crash. I have four crash report IDs from that event; I am sure it's these four because the Extensions tabs report "No extensions were installed." Three are out-of-memory, one is EXCEPTION_ACCESS_VIOLATION_READ. * * 593e9741-2b1e-4a9c-8cd0-1fa720241005 * * 0af6e22a-150f-4f88-922d-46c6a0241005 * * d967d511-cd39-4bfe-9b77-6597c0241005 * * 9d98d242-5b2e-421e-8b12-1e0c00241005 I ran MemTest86 and it didn't find any memory hardware issues. Since Troubleshooting Mode didn't reveal a misbehaving extension, do I still need to "Refresh Firefox"? Does anyone have suggestions for a next step? Thanks.