What to do if Firefox won't play any sounds

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  • Creator: Joni
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  • Reviewed by: heyjoni
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This article describes what to do when you can't hear sound in Firefox.

  • 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.
  1. Make sure the Mute checkbox is not checked and slider is not at the bottom.
  1. Click Mixer. The Volume Mixer window will appear.
  2. Make sure the Mozilla Firefox and plugin (such as Adobe Flash Player) sliders are not muted and are not at the bottom.



Win7 Volume Mixer

Check your audio device

Make sure that the audio device (such as speakers or headphones) are turned on and connected to the computer properly.

Other solutions

Check out whether other applications on your computer can play sounds. If they can't:

If Firefox is the only application that you can't hear sound in:

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

If no application can play sounds:

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

If you can't hear sounds in any other applications:

  • Make sure that the audio device (such as speakers or headphones) are turned on and connected to the computer properly.