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

Every time I start Firefox, I receive an ABS Error, along with a whie header instead of my custom theme.

  • 1 reply
  • 1 has this problem
  • 2 views
  • Last reply by philipp

more options

Every time I start my computer and open Firefox for the first time, I receive an ABS Error, saying "[ ABS ][ Error ] undefined:52 - Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [nsIAppShellService.hiddenDOMWindow" At the same time, my header is also white instead of my custom therme. If I restart Firefox, everything returns to normal.

Every time I start my computer and open Firefox for the first time, I receive an ABS Error, saying "[ ABS ][ Error ] undefined:52 - Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [nsIAppShellService.hiddenDOMWindow" At the same time, my header is also white instead of my custom therme. If I restart Firefox, everything returns to normal.

All Replies (1)

more options

hi, this is an error caused by one of the addons you have installed (avira browserschutz). in case you don't need it, you can deactivate or uninstall it: Disable or remove Add-ons