Hi samanthaleanne79, I'm sorry to hear that you are having issues with the audio and video sync when playing videos on Netflix. Does this problem happen on other sites like Hulu and Youtube as well? I looked through the knowledge base and found someone else with a similar issue as yours, including some troubleshooting steps that may be helpful: https://support.mozilla.org/en-US/questions/726950 Please try these steps: 1. Right click on the video Netflix video with sync issues and click on "Settings." 2. On the pop-up Settings menu, click on the left-most tab "Display". 3. Uncheck "Enable hardware acceleration" If these steps do not resolve the sync issues, please try reinstalling Java and Flash Player: http://www.java.com/en/download/index.jsp http://get.adobe.com/flashplayer/ Please write us back letting us know whether or not this solved the sync problems. Thanks! :)

Note that Netflix uses Silverlight and not Flash, so you need to check the Silverlight settings. See also: *http://forums.silverlight.net/t/245078.aspx/1