YouTube Sync by Vano Zabe
Sync YouTube playback between devices over local network
Available on Firefox for Android™Available on Firefox for Android™
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About this extension
YouTube Sync allows you to seamlessly synchronize playback across multiple devices on your local network. Perfect for watching together on a PC and tablet!
Real-time Sync: Actions like Play, Pause, and Seek are instantly mirrored.
Auto-Follow: Slaves automatically navigate to the video currently playing on the Master.
Adjustable Timeshift: Compensate for network latency with a precise slider.
On master PC should run the server
╰─➤ python3 <(curl -sSL https://gitlab.com/marmota/yt_sync/-/raw/main/yt_sync_server.py)
Real-time Sync: Actions like Play, Pause, and Seek are instantly mirrored.
Auto-Follow: Slaves automatically navigate to the video currently playing on the Master.
Adjustable Timeshift: Compensate for network latency with a precise slider.
On master PC should run the server
╰─➤ python3 <(curl -sSL https://gitlab.com/marmota/yt_sync/-/raw/main/yt_sync_server.py)
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Permissions and data
Required permissions:
- Access browser tabs
- Access your data for sites in the youtube.com domain
- Access your data for sites in the rutube.ru domain
- Access your data for 192.168.1.122:5000
Required data collection, according to the developer:
- Personally identifying information
More information
- Add-on Links
- Version
- 1.1
- Size
- 33.86 KB
- Last updated
- 4 days ago (Jan 27, 2026)
- Related Categories
- License
- MIT License
- Version History
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