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

When viewing news video (and others) the lips move and the sound follows after a few seconds. How do I fix this?

  • 1 reply
  • 1 has this problem
  • 1 view
  • Last reply by cor-el

more options

The movement of the lips when a video plays is not synced with the verbal noise that comes from speaking. It's like if I am talking and I hear it moments later not when I actually say it.

This happens when I view Fox news, cnn or any of the local news stations.

The movement of the lips when a video plays is not synced with the verbal noise that comes from speaking. It's like if I am talking and I hear it moments later not when I actually say it. This happens when I view Fox news, cnn or any of the local news stations.

All Replies (1)

more options

You can try to disable hardware acceleration in Firefox.

  • Tools > Options > Advanced > General > Browsing: "Use hardware acceleration when available"

You need to close and restart Firefox after toggling this setting.

Try to "disable the hardware acceleration" in the Flash Player.

See also:

Flash "Display settings" window: