Simply put, Firefox hangs right on startup. I see it loading the two generic tabs and then the wheel spins and then it says 'Not Responding' on the top of the window. I have to force close it each and every time, and I've also tried the following solutions in no particular order to alleviate the issue: 1) Ran SuperAntiSpyware and Malwarebytes last night for any possible infections. Reported back with nothing. 2) Booted my laptop up in Safe Mode (with networking) and still couldn't get it to operate. 3) Performed several clean uninstalls and re-installations which also included clearing out the profiles altogether and then trying to open it again, nothing. 4) Booted up Firefox by holding down the shift key and resetted it to its default settings and then tried firing it up again. Nothing. 5) Attempted booting up FF in Safe Mode with the shift key, nothing. 6) Created a new profile and tried booting FF, nothing. 7) Read this article http://kb.mozillazine.org/Firefox_hangs#Hyper-Threading about Hyper-Threading and followed the instructions which got it to operate, but I can't access the toolbar or the option menus. When I click on options Firefox closes with no error messages. I have a feeling this isn't the issue at hand but I figure I'd try it and at least I can get it to fully load and not hang. 8) Deleted all Firefox extensions and Plug-ins, nothing. 9) Enabled Firefox through firewall and antivirus settings, nothing. 10) Updated my BIOS firmware as suggested in #7, nothing. I've done almost 10 different things and I still can't figure out why Firefox keeps hanging on startup. I've looked into Youtube videos for tutorials and others posted about the Java crashing that was happening in an earlier version of FF. Since its not crashing, I'm unable to look into the crash logs and pinpoint a crash number or anything because it just freezes and when I click to close it I get a message saying: 'Close program' or 'Wait for it to respond.' I'm running a 64 bit Windows 7 on an HP Pavilion g6-1c44wm Notebook PC Microprocessor 2.10 GHz Intel Pentium Processor B950 Microprocessor Cache 2MB L3 Cache Memory 4GB DDR3 SDRAM (1 DIMM) Memory Max Maximum supported = 8GB Video Graphics Intel HD Graphics Video Memory Up to 1696MB Hard Drive 500GB 5400RPM) I'm trying to be specific as possible! Please help! I'm at the end of my rope here!