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

Minimize-Full/Part Screen-Exit buttons are blacked out in Firefox 28&29

  • 1 ŋuɖoɖo
  • 11 masɔmasɔ sia le wosi
  • 1 view
  • Nuɖoɖo mlɔetɔ cor-el

more options

The upper right corner of the screen now shows a black box and I can';t get to the minimize, maximize or close buttons.

The upper right corner of the screen now shows a black box and I can';t get to the minimize, maximize or close buttons.

All Replies (1)

more options

Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance).

  • Do NOT click the Reset button on the Safe Mode start window.