What Firefox are you using on Windows 8 ? The crash report flagged these programs; mswsock.dll = Microsoft combase.dll = Microsoft ntdll.dll = Microsoft IPSEng32.dll = Symantec Intrusion Detection IPSLdr32.dll = Symantec Intrusion Detection --------------------------- Perform a System File Check to fix corrupted system files http://www.sevenforums.com/tutorials/1538-sfc-scannow-command-system-file-checker.html See if there are updates for your graphics drive drivers https://support.mozilla.org/kb/upgrade-graphics-drivers-use-hardware-acceleration ---------------------------- Download the full installer for you current Norton program(s) and save it.. '''[https://support.norton.com/sp/en/us/home/current/solutions/kb20080710133834EN_EndUserProfile_en_us Download and run the Norton Removal Tool to uninstall your Norton product]''' After, run the installer

You can try to disable OMTC and leave hardware acceleration in Firefox enabled. *<b>about:config</b> page: <b>layers.offmainthreadcomposition.enabled</b> = false You can open the <b>about:config</b> page via the location/address bar. You can accept the warning and click "I'll be careful" to continue. *http://kb.mozillazine.org/about:config