What to do if Firefox won't play any sounds

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This article describes what to do when you can't hear sound in Firefox.

  • Make sure other applications on your computer can play sounds. If they can't, follow Microsoft's No sound in Windows tutorial. If Firefox is the only application that you can't hear sound in, try the solutions in Fix common audio and video issues.
  • If you want Firefox to make a "click" sound effect when you click on a link, and to use other small sound effects when you browse web pages, try the Navigational Sounds extension.
  • Before using the instructions in this article, make sure other applications on your computer can play sounds. If they can't, follow Microsoft's No sound in Windows tutorial. If Firefox is the only application that you can't hear sound in, continue to the troubleshooting steps below.
  • If you want Firefox to make a "click" sound effect when you click on a link, and to use other small sound effects when you browse web pages, try the Navigational Sounds extension.

Unmute Firefox and plugins

  1. Open Firefox and play contents that should play sound: an HTML5 video with audio track in this Firefox videos page, a Flash sound, etc.
  2. Click the volume icon in the Windows task bar.
  3. Click Mixer. The Volume Mixer window will appear.
  4. Make sure the Mozilla Firefox and plugin sliders are not muted and are not at the bottom.



Win7 Volume Mixer

Other solutions

If you're still having trouble hearing sound, follow the instructions in the Fix common audio and video issues article.

Make sure other applications on your computer can play sounds. If Firefox is the only application that you can't hear sounds in:



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