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

Since upgrade to 3.6.10 Every time launch/open firefox get error box: "Operating System Error! (16291.103.506 - 42072310.00000000.80070057.80080005)

  • 1 cavab
  • 54 have this problem
  • 2 views
  • Last reply by Snark

more options

Happens Every time whether opening from desktop shortcut or link in email or any other method. Box label is getPlus+(R):Error Doesn't matter if click on OK or X to close box - nothing further happens and able to use firefox. However, it holds up opening firefox or launch page by quite a bit of time...

Happens Every time whether opening from desktop shortcut or link in email or any other method. Box label is getPlus+(R):Error Doesn't matter if click on OK or X to close box - nothing further happens and able to use firefox. However, it holds up opening firefox or launch page by quite a bit of time...

All Replies (1)

more options

Also see 2nd box which loads up upon opening any pages once firefox is open and running (re adobe download manager) Note: Never had any prior problems with any firefox versions, ever (using on this PC since approx. 2005)