I purchased 1-year license because it was a good deal and system became faster and smoother. This changed after I uninstalled it and installed NOD32 Antivirus. Prior to Black Friday, I ahd Norton EndPoint Antivirus protection which was cumbersome to my system and I had to do browser restarts even more often. I have been having worse similar crashes since the time I got the laptop. Exact model number (if laptop, check label on bottom) Dell Latitude E6420.Power Supply - brand & wattage Dell, 65W.CPU DualCore Intel Core i5-2520M, 2500 MHz.Approximate age of OS installation (if you know) 4 years.Approximate age of system (hardware) 4 years.Is the OS an OEM version (came pre-installed on system) or full retail version (YOU purchased it from retailer)? Preinstalled.What was the original installed OS on sthe ystem? This was original.OS - Windows 8.1, 8, 7 or Vista? Windows 7 Enterprise.How do I proceed from here to recover Firefox? Tried 'Safe-Mode', tried creating new profile, tried checking everything for Firefox CCleaner has and all to no avail. One is 70MB and another is a few kilobytes.

I see 2 processes firefox.exe running in Task Manager. The last crash rendered Firefox non-usable but Chrome works. If I leave Firefox running for long time, Standby's after Standby's without restarting it it's memory usage hits 1.5GB. With Firefox it is harder to isolate issue on a tab-level unlike it is with Chrome that has built-in Task Manager.

Firefox flash plugin memory leak