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

can't watch cnn video, commercial plays but video does not, fox news works fine.

  • 3 cavab
  • 6 have this problem
  • 7 views
  • Last reply by cor-el

more options

video of any news event will not play. Commercial plays fine but not news, just dark screen. red line at bottom of screen does not reset. fox news plays fine.

video of any news event will not play. Commercial plays fine but not news, just dark screen. red line at bottom of screen does not reset. fox news plays fine.

All Replies (3)

more options

Clear the cache and the cookies from sites that cause problems.

"Clear the Cache":

  • Tools > Options > Advanced > Network > Cached Web Content: "Clear Now"

"Remove Cookies" from sites causing problems:

  • Tools > Options > Privacy > Cookies: "Show Cookies"

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 or otherwise make changes.

You can check for problems caused by recent Flash updates and try these:

  • disable a possible RealPlayer Browser Record Plugin extension for Firefox and update the RealPlayer if installed
  • disable protected mode in Flash 11.3 and later
  • disable hardware acceleration in the Flash plugin
more options

I reloaded firefox, java, adobe air, adobe flash player11, adobe reader xl, google chrome, real player. still plays add but not video. only on cnn. fox news plays great. Left all programs as loaded. did not change anything. the same problem is with IE.

more options

Which security software (firewall, anti-virus) do you have?

Try to boot the computer in Windows Safe mode with network support (press F8 on the boot screen) as a test to see if that helps.