This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Fire fox won't open after installing update. But it shows in my task manager as running

  • 1 பதிலளி
  • 1 இந்த பிரச்சனை உள்ளது
  • 2 views
  • Last reply by Morbus

Firefox won't open after installing update 3.6.6 Solution page says problem has been solved, but the solution has been removed.

This happened

Every time Firefox opened

After installing update 3.6.6

User Agent

Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0)

Firefox won't open after installing update 3.6.6 Solution page says problem has been solved, but the solution has been removed. == This happened == Every time Firefox opened == After installing update 3.6.6 == == User Agent == Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0)

All Replies (1)

Hello Chris.

Hopefully this support article is what you need:

https://support.mozilla.com/en-US/kb/Firefox+will+not+start