Merlin
Audio Output Selector

Audio Output Selector

Allows you to change the audio output device of <audio> and <video> elements. Requires media.setsinkid.enabled set to true in about:config!

What is Audio Output Selector?
"Audio Output Selector" is a versatile Firefox extension that allows users to change the audio output device of HTML audio and video elements on the go. Ideal for those with multiple audio devices, this extension creates flexibility and ease when switching between devices, like a TV or headset. It employs the innovative Audio Output Devices API and requires enabling through about:config settings in Firefox. It currently supports updating existing elements on the page when it's run and aims to add functionality for new elements in future updates. Open source, community-supported, and actively developed.
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Merlin
Stats
By: AgentOink
Users: 2,748 ▲ 45
Version: 1.0 (Last updated: 2021-11-26)
Creation date: 2021-11-26
Weekly download count: 69
Firefox on Android: No
Risk impact: Very low risk impact
Risk likelihood: Low risk likelihood
Manifest version: 2
Permissions:
  • activeTab
Size: 16.66K
Stats date:

Chrome-Stats Rank

# 1740 ▲ 3
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Not available on Chrome
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Merlin
Summary
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Allows you to change the audio output device of <audio> and <video> elements.

Do you have multiple audio output devices? Do you like to switch between using your TV and your headset? The aim with this extension is to not only make this process easier, but more flexible. Now you can have Twitch open in one tab, playing on your speakers, and YouTube in another, playing to your headset.

IMPORTANT INFORMATION: This add-on makes use of an experimental feature called "The Audio Output Devices API" . This feature is disabled by default. Please enable it by setting media.setsinkid.enabled to true in about:config.

I 💜 open-source! Check out the GitHub? Want to support? Send me a tip!

NOTE: Currently the extension only updates elements on the page when it is run. This means new elements will not use the selected audio device without rerunning the script. This is a problem for social media sites, such as Twitter and Reddit. I'll look into supporting this behaviour in future.

User reviews
User reviews summary
These summaries are automatically generated weekly using AI based on recent user reviews. Firefox Browser Add-ons does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
Pros
  • Useful for selecting audio output on a per-tab basis
  • Open source and available for review on GitHub
  • No permissions required to install
Cons
  • Does not work without PulseAudio on Linux
  • Some users report it does not work, or requires a restart of Firefox
  • Does not support light themes or automatically prompt for audio device selection
Most mentioned
  • Works well when set up correctly
  • Sometimes requires a Firefox restart or other troubleshooting
  • Compatibility issues with certain Firefox versions and operating systems
Recent reviews
by Firefox user 17226637, 2024-04-25
by Firefox user 17226637, 2024-04-25
Doesn't work 100% of the time, but is still extremely useful and very appreciated. One of those "why isn't that just built in?" type of things.
by HolySpacePapa, 2024-04-24
View all user reviews
Safety
Risk impact

Audio Output Selector is safe to use. It does not request any sensitive permissions.

Risk likelihood

Audio Output Selector has earned a fairly good reputation and likely can be trusted.

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Screenshots
Audio Output Selector Audio Output Selector