Tap here to go to the mobile version of the site.
Your Firefox is out of date and may contain a security risk! Upgrade Firefox

Support Forum

I have no sound when I watch video with Firefox but I have sound when I watch with Internet Explorer.


When i watch video with Firefox, it has no sound. The speakers are fine because I get sound when I watch the video with Internet Explorer.

Additional System Details

This happened

Every time Firefox opened

This started when...


Installed Plug-ins

  • ActiveTouch General Plugin Container Version 105
  • iLinc101 Install Plugin
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • Adobe PDF Plug-In For Firefox and Netscape "9.4.2"
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.
  • Default Plug-in
  • Google Update
  • Shockwave Flash 10.2 r152
  • iTunes Detector Plug-in
  • CANON iMAGE GATEWAY Album Plugin Utility Module
  • 4.0.50917.0
  • Next Generation Java Plug-in 1.6.0_20 for Mozilla browsers


  • User Agent: Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv: Gecko/20110303 Firefox/3.6.15 ( .NET CLR 3.5.30729; .NET4.0C)

More Information

Helper7677 165 solutions 1653 answers

See: http://support.mozilla.com/en-US/kb/No%20sound%20in%20Firefox

Other issues needing your attention

The information submitted with your question indicates that you have out of date plugins with known security and stability issues that should be updated. To see the plugins submitted with your question, click "More system details..." to the right of your original question post. You can also see your plugins from the Firefox menu, Tools > Add-ons > Plugins.

  • Next Generation Java Plug-in 1.6.0_20 for Mozilla browsers
  1. Check your plugin versions on either of the following links':
  2. Update the Java plugin to the latest version.
LeahStorm 0 solutions 3 answers

Helpful Reply

The recent update to Adobe Flash 11.3 is causing no sound for some Firefox users. See this thread for help. http://forums.adobe.com/message/4483563#4483563?tstart=0

migvil 0 solutions 1 answers

Helpful Reply

I had the same "no sound" problem with Firefox 13.0.1. Also, I had the latest flash player plugin. I completed removed the flash player plugin. I re-installed older flash player version 10, file name: flashplayer_10_plugin_debug.exe, now the sound is back and perfect.