Well, first the Version of Firefox you are running is extremely old and out of date. Let's try the following to get your Firefox back up and working: '''Scan for Malware''' Sometimes a problem with Firefox may be a result of malware installed on your computer, that you may not be aware of. You can try some of the following programs to scan for malware: * [http://www.malwarebytes.org/mbam.php MalwareBytes' Anti-Malware] * [http://support.kaspersky.com/faq/?qid=208283363 TDSSKiller - AntiRootkit Utility] * [http://windows.microsoft.com/MSE Microsoft Security Essentials] (A good permanent anti-virus if you don't already have one) Further information can be found in the [[Troubleshoot Firefox issues caused by malware]] article. '''Update''' After Scanning for malware, you have several things that are very out of date and are leaving you very vulnerable to viruses. First, update Firefox to Firefox 15.0.1 [[Update Firefox to the latest version]]. Then update your plugins. [http://www.mozilla.org/plugincheck/ http://www.mozilla.org/plugincheck/] Finally, update Windows. [http://windowsupdate.microsoft.com windowsupdate.microsoft.com] '''Reset Firefox''' Finally, if this still doesn't work, try to Reset Firefox. [[Reset Firefox – easily fix most problems]]