Firefox crashes on start-up even after reinstall

If your Mozilla Firefox crashes on start-up and you have tried disabling all of your plug-ins in a safe mode, creating new profile and uninstalling and then reinstalling and yet Firefox still crashes on start-up then try the following solution.

Before doing any troubleshooting you always want to backup your profile first. If you are on Microsoft Windows you could use MozBackup software to backup your Firefox profile. On the Mac OS X Mozilla Firefox profile is usually located at ~/Library/Application Support/Firefox/Profiles/[random string].default/ you want to backup entire profile folder.
  1. To start Mozilla Firefox in safe mode hold Shift while double clicking on your Firefox application.
  2. Click the menu button and select Options or Tools then click Options.
  3. In the Firefox Options, click the Advanced tab, then select General.
  4. Under browsing you should be able to see Use hardware acceleration when available. If it is ticked please uncheck this check box.
  5. Now exit or restart your Mozilla Firefox and see if the problem above persist.

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