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

Wo archive tread sia. Meɖekuku bia biabia yeye ne ehia kpeɖeŋu.

Firefox in Ubuntu occasionally has black bars on screen

  • 3 ŋuɖoɖowo
  • 2 masɔmasɔ sia le wosi
  • 1 view
  • Nuɖoɖo mlɔetɔ tonga

tonga
tonga
more options

I'm using Firefox in Ubuntu Linux 12.04. Occasionally I can see some scattered black bars on screen when I browse web pages. Those black bars will disappear after I click another tab and return to the original tab screen. This problem has persisted since earlier version of Firefox in Ubuntu. I upgraded Firefox to the latest v32.0 but sometimes it still has the same problem. So I don't know what causes this "scattered black bars on screen" problem. I don't know if it's the compatibility of Firefox with Ubuntu's Unity desktop issue or related to display memory.

I'm using Firefox in Ubuntu Linux 12.04. Occasionally I can see some scattered black bars on screen when I browse web pages. Those black bars will disappear after I click another tab and return to the original tab screen. This problem has persisted since earlier version of Firefox in Ubuntu. I upgraded Firefox to the latest v32.0 but sometimes it still has the same problem. So I don't know what causes this "scattered black bars on screen" problem. I don't know if it's the compatibility of Firefox with Ubuntu's Unity desktop issue or related to display memory.

All Replies (3)

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 10 Contributor
more options

If you haven't already, could you try disabling Firefox's use of hardware acceleration? This can work around glitches caused by incompatibility with your graphics card driver software.

I'm not exactly where where this is on Linux, but maybe:

"3-bar" menu button (or Edit menu) > Preferences > Advanced

On the "General" mini-tab, uncheck the box for "Use hardware acceleration when available"

This takes effect the next time you exit and start Firefox up again.

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
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
tonga
tonga Biabia la
more options

The problem is still there after I turned off Ubuntu addon and hardware acceleration.