Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

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

how do i change the black close tab?

  • 1 reply
  • 3 have this problem
  • 169 views
  • Last reply by cor-el
  • Archived

The top right corner is black. This should be the maximize/minimize/close tabs, but when I started up the computer today, they show up as a black bar. How do I remedy this?

The top right corner is black. This should be the maximize/minimize/close tabs, but when I started up the computer today, they show up as a black bar. How do I remedy this?

All Replies (1)

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

You can also try a different Windows theme.