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What were you doing during the crash? Are there other crashes?
Product Firefox Release Channel esr Version 38.8.0esr Build ID 20160420141331 OS Windows 7 OS Version 6.1.7601 Service Pack 1
sysfer.dll = Symantec CMC Firewall
IPSEng32.dll = Symantec Intrusion Detection
Download the current full installers for your Norton programs and save them.
After rebooting the computer, run a registry scanner. Then run the installers.
hi, thanks for providing a crash report id. this may be an issue caused by your norton security software that is hooking into firefox and causing it to crash (maybe through a program/signature update done by them). can you please try to disable norton temporarily and see if you can get firefox to launch again & please also get in contact with their support...