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The template "crashsig" does not exist or has no approved revision. nsCycleCollectingAutoRefCnt::decr(nsISupports*)
This crash is likely caused by other software or extensions running on your computer.
Roboform may be conflicting with other extensions and cause this crash. To try disabling or uninstalling Roboform, see Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems.
For help with Firefox crashes in general, see Troubleshoot Firefox crashes (closing or quitting unexpectedly).