Mozilla VPN is currently experiencing an outage. Our team is actively working to resolve the issue. Please check the status page for real-time updates. Thank you for your patience.

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

Weird lines on screen when I watch youtube

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

more options

So on certain websites when I zoom in these weird white lines and boxes appear on the screen. they only appear when zoomed in and when I put my cursor in certain places. Usually when I move my cursor they disappear but I was able to catch these. Im on firefoxes most recent update on a lenovo laptop with windows 11. As far as I know this only happens in firefox, another thing is I recently updated my drivers due to screen flicker.

So on certain websites when I zoom in these weird white lines and boxes appear on the screen. they only appear when zoomed in and when I put my cursor in certain places. Usually when I move my cursor they disappear but I was able to catch these. Im on firefoxes most recent update on a lenovo laptop with windows 11. As far as I know this only happens in firefox, another thing is I recently updated my drivers due to screen flicker.
Attached screenshots

All Replies (3)

more options

You can try to disable hardware acceleration in Firefox.

Close and restart Firefox after modifying the setting to apply changes.

You can check if there is an update for your graphics display driver and check for hardware acceleration related issues.

more options

Both of those didn't work and the lines persisted. Though it seems the lines are a bit less prevalent now then they used to be but that might be a coincidence. The other website this glitch happens on is Pokemon showdown

more options

Does it still happen in Troubleshoot Mode?