If Firefox no longer crashes when you run in Firefox Safe Mode, go to the Add-ons Manager Extensions list, click the Disable button for every extension, and restart Firefox normally. Note: If Firefox also crashes in Firefox Safe Mode, then an extension is not the problem and you should skip to the next section. This will help determine if an extension is causing the problem, since Safe Mode disables all extensions. Start in Firefox Safe Mode and click 'Start in Safe Mode' ('Continue in Safe Mode' in Firefox 14 and below). Problematic extensions may cause crashes.
