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.

Avatar for Username

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

This thread was archived. Please ask a new question if you need help.

Random boxes appear when highlighting text

  • 3 replies
  • 0 have this problem
  • 17 views
  • Last reply by zeroknight

usama.alshiraida
usama.alshiraida
more options

Recently random boxes (black, grey or white) started appearing when highlighting text. The problem started occurring after the most recent Windows 11 update (2023-09 Cumulative Update Preview for Windows 11 Version 22H2 for x64-based Systems (KB5030310)).

Recently random boxes (black, grey or white) started appearing when highlighting text. The problem started occurring after the most recent Windows 11 update (2023-09 Cumulative Update Preview for Windows 11 Version 22H2 for x64-based Systems (KB5030310)).
Attached screenshots

All Replies (3)

JohnQ Public
JohnQ Public
more options

Check for malware

usama.alshiraida
usama.alshiraida Question owner
more options

Checked and clean. I only see the issue on FireFox. Chrome and Edge don't exhibit the same behaviour.

zeroknight
zeroknight
more options

Update your graphics drivers to the latest version from the manufacturer's site, failing that you may need to disable hardware acceleration.