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I keep getting a message that says "Firefox.exe – application error The exception unknown software exception (0xc0000417) occurred in the application at location 0x78579231" and when i click ok it closes my firefox window.

Posted

I've already tried uninstalling firefox and then reinstalling it. (i've done this twice but it still keeps giving me this message.

Additional System Details

Installed Plug-ins

  • Shockwave Flash 10.3 r181
  • iTunes Detector Plug-in
  • 4.0.50917.0
  • Windows Presentation Foundation (WPF) plug-in for Mozilla browsers
  • 12.0.1.609
  • RealPlayer(tm) LiveConnect-Enabled Plug-In
  • RealJukebox Netscape Plugin
  • RealPlayer(tm) HTML5VideoShim Plug-In
  • Java Plug-in 1.6.0_13 for Netscape Navigator (DLL Helper)
  • Java(TM) Platform SE binary
  • Adobe PDF Plug-In For Firefox and Netscape
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.
  • Npdsplay dll
  • DRM Store Netscape Plugin
  • DRM Netscape Network Object

Application

  • User Agent: Mozilla/5.0 (Windows NT 5.1; rv:2.0.1) Gecko/20100101 Firefox/4.0.1

More Information

Xircal 334 solutions 3835 answers

Please reinstall Firefox as follows:

  1. Go to Download Firefox 4.0.1 and download a fresh installation file to the desktop using IE8.

  2. Then go to Add/Remove Programs, scroll down to "Mozilla Firefox" and remove it, choosing to keep your bookmarks, customizations etc., (don't checkmark the box).

  3. Next, reboot and delete the folder called "Mozilla Firefox" at this location: C:\Program Files\Mozilla Firefox

  4. Finally run the installation file you downloaded to the desktop earlier.

Your bookmarks, customizations etc., are maintained in a different location and will become available to you again once you complete the installation.