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c:\Program Files (x86)\Mozilla Firefox\firefox.exe


When trying to start Firefox an error window pops up instead stating "C:\Program Files (x86)\Mozilla Firefox\firefox.exe Unspecified Error". I can launch a web page if go through various help prompts through Windows, which is why I'm able to email you, but the above error appears if I try launching Firefox directly. Also Internet Explorer, Google Chrome and various other programs will not launch either giving me similar error messages. I have tried downloading and reinstalling Firefox and other trouble shooting advice.

Additional System Details

This happened

Every time Firefox opened

This started when...

I tried launching Firefox after closing a previous window, computer was left alone long enough to go into to sleep mode, and when taken out of sleep mode the error started to occur.

Installed Plug-ins

  • Google Update
  • 4.0.60831.0
  • Shockwave Flash 10.3 r183
  • Adobe PDF Plug-In For Firefox and Netscape
  • Coupons, Inc. Coupon Printer Plugin
  • Coupons, Inc. Coupon Printer DLL


  • User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:8.0.1) Gecko/20100101 Firefox/8.0.1

More Information

Swarnava Sengupta 482 solutions 3134 answers

Upgrade your browser to Firefox 9 and check

  • Top 10 Contributor
  • Moderator
10739 solutions 96650 answers

Did you try to reboot the computer?