Firefox will not respond after loading it onto my Windows 7 computer

Question

I downloaded Firefox browser to my new Windows 7 computer and installed the program. I used Firefox for a while without any problem for a while and logged off of the internet and shut my computer down. The next morning, I turned on my computer, and clicked on my Firefox icon. I got a blank screen with the little aqua circle working. Then a message appeared in the upper left hand corner of my computer display, which read "Mozilla Firefox Not Responding". I closed the program. ''' By the Way, I installed Google Chrome web browser and am currently using it it without any problem. I would prefer to use Firefox though.'''

Answer 1

Does Firefox starts up when you first open it after rebooting the computer but hangs the next time you try to start it? If so, then there's a [https://bugzilla.mozilla.org/show_bug.cgi?id=1005487 bug] in Firefox 29 where Firefox hangs on exit when the setting "Clear history when Firefox closes" is selected, so that you get an "already running but not responding" error the next time you ttry to start it. In that case, end the firefox.exe process in the Windows Task Manager (or reboot the computer) then reset your Firefox Privacy options and UNCHECK the option "Clear history when Firefox closes". See this article for details:
[[Settings for privacy, browsing history and do-not-track]]
If that's not the problem and Firefox still not open even after rebooting the computer then try starting in Firefox Safe Mode by holding down the shift key while starting Firefox. If Firefox starts then see the [[Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems]] article to narrow down the cause.