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

Horizontal black lines fill the screen on certain flash websites

  • 4
  • 5
  • 3 views
  • Nzaghachi ikpeazụ nke cor-el

more options

When opening sites such as twitter and some other sites the screen goes fuzzy with horizontal black lines. When this happens you can't read the anything on the screen. Other browsers have no problems such as this.

Here's a pic for you

http://www.freeimagehosting.net/ovm1c

When opening sites such as twitter and some other sites the screen goes fuzzy with horizontal black lines. When this happens you can't read the anything on the screen. Other browsers have no problems such as this. Here's a pic for you http://www.freeimagehosting.net/ovm1c

All Replies (4)

more options

Cannot connect to that URL. Try this page:

more options

Try to disable hardware acceleration in Firefox.

more options

Thanks for the replies. Sadly none of the suggestions really seem to address the problem.

more options

You can check for problems with current Flash plugin versions and try these:

  • disable a possible RealPlayer Browser Record Plugin extension for Firefox and update the RealPlayer if installed
  • disable protected mode in the Flash plugin (Flash 11.3+ on Windows Vista and later)
  • disable hardware acceleration in the Flash plugin