Recently I updating my firefox but within a few hours it stopped working. I constantly receive a "Mozilla Crash Reporter" that says: "We're Sorry Firefox had a problem and crashed. We'll try to restore your tabs and windows when it restarts. etc....." It gives the option to restart but when I click "Restart Firefox" the same window pops up again and again and again. I tried restarting, opening in safe mode, running scans (I have Norton 360), and system restore. Any thing to do with mozilla won't open and I'm not trying to uninstall because I have all my bookmarks in Firefox. The details of the "Mozilla Crash Reporter" states the following: AvailableVirtualMemory: 2023514112 BuildID: 20111220165912 CrashTime: 1328338399 InstallTime: 1327124002 Notes: xpcom_runtime_abort(###!!! ABORT: Main-thread-only object used off the main thread: file e:/builds/moz2_slave/rel-m-rel-w32-bld/build/xpcom/base/nsCycleCollector.cpp, line 1273) ProductName: Firefox ReleaseChannel: release SecondsSinceLastCrash: 755 StartupTime: 1328338399 SystemMemoryUsePercentage: 54 Throttleable: 1 TotalVirtualMemory: 2147352576 URL: Vendor: Mozilla Version: 9.0.1 This report also contains technical information about Please help, Thank you.