Product Firefox Version 41.0.1 Release Channel release OS Windows NT OS Version 6.1.7601 Service Pack 1 IPSEng32.dll = Symantec Intrusion Detection IPSLdr32.dll = Symantec Intrusion Detection Total Virtual Memory 4294836224 Available Virtual Memory 3832512512 System Memory Use Percentage 78 Available Page File 4830081024 Available Physical Memory 919040000 This is for Sumo's Related Bugs 1181091 RESOLVED WONTFIX Firefox 40 crashes on startup [@ @0x0 | ScopedXPCOMStartup::~ScopedXPCOMStartup() ] with Websense Endpoint ------------ Do you have Websense on your system? Disable it. ---------------- '''[https://support.mozilla.org/en-US/kb/firefox-uses-too-much-memory-ram Firefox uses too much memory (RAM) - How to fix]''' This article describes how to make Firefox use less memory to make it run faster and prevent crashes. '''https://support.mozilla.org/en-US/kb/firefox-slow-how-make-it-faster''' '''https://support.mozilla.org/en-US/kb/firefox-uses-too-many-cpu-resources-how-fix''' '''https://support.mozilla.org/en-US/kb/firefox-hangs-or-not-responding'''