What to do if Firefox won't play any sounds
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- Revision id: 183118
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- Creator: AliceWyman
- Comment: {for fx66} Intro: link to media autoplay article; purged pre-fx60 content
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- Reviewed by: AliceWyman
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This article describes what to do when you can't hear sound in Firefox.
- To allow autoplay of media with sound, see Allow or block media autoplay in Firefox.
Unmute Firefox and plugins
- Open Firefox and play content that should play sound, such as this Firefox video or a Flash video with sound.
- Click the volume icon in the Windows taskbar.
- Click MixerOpen Volume Mixer. The Volume Mixer window will appear.
- Make sure the sliders for Mozilla Firefox and Plugin Container for Firefox (for plugin content such as Adobe Flash) are not muted or at the bottom.
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:
- Follow Microsoft's Fix sound problems tutorial.
If Firefox is the only application that you can't hear sound in:
- Try the solutions in Fix common audio and video issues.
Make sure other applications on your computer can play sounds. If Firefox is the only application that you can't hear sounds in:
- Try the solutions in Fix common audio and video issues.
If no application can play sounds:
- See Apple's Troubleshooting issues with no audio from built-in speakers on Macs.
- If you have an external audio device, check whether it's turned on and connected properly.
Make sure other applications on your computer can play sounds. If Firefox is the only application that doesn't play sounds:
- Try the solutions in Fix common audio and video issues.
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.