Where to Download ThemeSong
Updated
ThemeSong is a browser extension that adds dynamic themes, visualizers, and utilities to YouTube Music. You can get it from three official places, depending on what you need: the Chrome Web Store for Chrome-based browsers, Firefox Add-ons for Firefox, or the GitHub repository for source code and updates. The official site, themesong.app, is the reference point that links to all of these.
Download Options at a Glance
| What you want | Where to get it | Best for |
|---|---|---|
| Install in Chrome, Edge, Brave, or other Chromium browsers | Chrome Web Store | Most users on Chromium-based browsers |
| Install in Firefox | Firefox Add-ons | Firefox users |
| Source code, releases, and update tracking | GitHub | Developers, reviewers, and anyone who wants to inspect the code |
How to Install from the Chrome Web Store
- Open the Chrome Web Store listing linked from themesong.app.
- Select Add to Chrome (the label may read differently in Edge or Brave, but the action is the same).
- Confirm the permission prompt. The extension needs access to music.youtube.com to apply themes and utilities there.
- Open or reload https://music.youtube.com. The ThemeSong features should appear on the YouTube Music interface.
Expected result: the extension is active on YouTube Music and its theme, visualizer, and utility options become available.
Common snag: if nothing changes, reload the YouTube Music tab. Extensions usually don't apply to tabs that were already open before installation.
How to Install from Firefox Add-ons
- Open the Firefox Add-ons listing linked from themesong.app.
- Select Add to Firefox.
- Approve the permission request.
- Reload https://music.youtube.com.
Expected result: the same ThemeSong features load on the YouTube Music page in Firefox.
Common snag: Firefox may hold extensions in a pending state until you confirm. Check the extensions menu if the features don't show up after reloading.
When to Use the GitHub Repository Instead
Choose GitHub if you want to:
- Read the source code before installing anything.
- Track releases and changelogs to see what each update changes.
- Report bugs or follow development activity.
- Install a build manually rather than through a store listing.
The store listings are the simplest path for normal use. GitHub is the better entry point when verification or version tracking matters to you.
Quick Decision Guide
- You use Chrome, Edge, or Brave and just want it working: Chrome Web Store.
- You use Firefox: Firefox Add-ons.
- You want to inspect the code or follow updates: GitHub.
- You're not sure which link is official: start at themesong.app and follow its links to the store listings and GitHub.
One note on scope: ThemeSong is built for YouTube Music specifically, not for other streaming services. If you use a different music platform, this extension won't apply to it.