YouTube Watch Party: Privacy Policy

Last updated: July 17, 2026

The short version

The extension synchronizes YouTube playback between you and your friends. To do that, it relays playback state through our server while you are in a room. It does not collect analytics, does not track your browsing, does not show its own ads and does not sell anything to anyone. There are no accounts and no registration.

What the extension processes

While you are in a watch party room, the extension exchanges the following with the synchronization server (sync.mbplanes.com):

• Playback state of the current YouTube video: video id, position, play or pause, playback speed.
• The display name you typed in the panel, if any. It is visible to other members of your room and to nobody else.
• A random room code that identifies your room.
• Your IP address, as with any internet connection. It is used only for abuse protection (rate limiting) and appears in short-lived technical logs.

What we store

Nothing durable. Room state lives in server memory only while the room exists and is deleted the moment the last member leaves, or when the room is closed for inactivity. There is no database. Technical logs rotate and contain no viewing history.

What stays on your device

The extension keeps small local settings in your browser storage: your chosen display name, the current room, and a flag that you have seen the built-in instructions. They never leave your browser except as described above and are removed when you uninstall the extension.

What we never do

• No analytics, no tracking pixels, no fingerprinting.
• No reading of your YouTube account, history or subscriptions.
• No collection of pages you visit. The extension runs only on youtube.com.
• No selling, renting or sharing of any data with third parties.

Security

All traffic between the extension and the server uses encrypted connections (TLS). Room codes are long random secrets generated on the server, so uninvited guests cannot guess their way into your room.

Changes and contact

If this policy changes, the new version will be published at this address with an updated date. Questions are welcome at serzhserg98@gmail.com.