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

How do I fix the lines appearing beneath my typing?

  • 3 replies
  • 4 have this problem
  • 4 views
  • Last reply by Moldy

more options

When typing in text boxes there are strange looking bars appearing below the text. I use Vista and Firefox 4.0.

When typing in text boxes there are strange looking bars appearing below the text. I use Vista and Firefox 4.0.

All Replies (3)

more options
more options

Update the video display driver to the latest version.

Try to disable hardware acceleration in Firefox 4.0: Tools > Options > Advanced : General: Browsing: [ ] "Use hardware acceleration when available"

more options

I know what a spellchecker is.

The bars are strange as I can see a vimeo logo sometimes.

Modified by Moldy