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Grout

ExtensionFunctionality & UI3 users
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Overview

Tells MosaicShell what your browser is playing, including YouTube Music likes. Talks only to MosaicShell on your computer.

Grout is the browser companion for MosaicShell, the Windows desktop shell. It tells MosaicShell what your browser is playing, so MosaicShell's flyouts show the right title, artist and cover, and the like and dislike buttons work, even while the browser window is covered or minimised. What it reports, on YouTube Music, YouTube, Spotify (web player) and SoundCloud: - title, artist, album and cover - playing or paused - on YouTube Music, whether the track is liked or disliked, and pressing like or dislike from MosaicShell Needs MosaicShell. Start MosaicShell once; it sets up Grout's connection for your Windows account. Without MosaicShell, Grout does nothing. Click Grout's toolbar icon to see whether it is connected. Private by design. Grout talks only to MosaicShell, on your own computer. It has no account, no servers, no analytics, no remote code and no host permissions, and it runs only on the four sites above. Free and open source under the GPL-3.0-or-later: https://github.com/uairhahs/Grout

Details

  • Version
    2026.9.21-b6
  • Updated
    September 21, 2026
  • Offered by
    Mosaic
  • Size
    40.04KiB
  • Languages
    English
  • Developer
    Email
    uairhahs@gmail.com
  • Non-trader
    This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.

Privacy

Manage extensions and learn how they're being used in your organization

Grout has disclosed the following information regarding the collection and usage of your data. More detailed information can be found in the developer's privacy policy.

Grout handles the following:

Website content

This developer declares that your data is

  • Not being sold to third parties, outside of the approved use cases
  • Not being used or transferred for purposes that are unrelated to the item's core functionality
  • Not being used or transferred to determine creditworthiness or for lending purposes

Support

For help with questions, suggestions, or problems, visit the developer's support site

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