Crash ID: bp-48537c5f-0e28-41d7-a9d2-00bc42150902 This is for Sumo's Related Bugs 1181091 NEW --- Firefox 40 crashes on startup [@ @0x0 | ScopedXPCOMStartup::~ScopedXPCOMStartup() ] with Websense Endpoint Nvwgf2um.dll = NVIDIA Compatible D3D10 Driver = NVIDIA Corporation IPSEng32.dll = Symantec Intrusion Detection IPSLdr32.dll = Symantec Intrusion Detection --------------------------------- This bug has not been fixed yet but is being worked on. ---------------------- Perform a System File Check to fix corrupted system files Win 7, 8, 10, Vista: https://support.microsoft.com/en-us/kb/929833 See if there are updates for your graphics drivers https://support.mozilla.org/kb/upgrade-graphics-drivers-use-hardware-acceleration