Is Sync Watch safe?

Clean risk

Sync Watch sends shared tab details and video playback events to its server after a user joins a room.

Sync Watch runs a content script on all pages and monitors video elements for playback actions. After the user joins a room and shares a video, it sends the selected tab's URL and title plus playback details such as frame location, event type, current time, and playback rate to its server.

Semrov1.1.0Firefox Add-ons
2Risk

AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.

Publishers can request a review.

What it can do

Permissions this extension asks for, as declared in version 1.1.0. Asking for a permission is not a finding on its own - it is what the extension can do if it chooses to.

  • Read and change your data on every site you visit

    <all_urls>

  • See the address and title of every tab you have open

    tabs

  • Store data in your browser

    storage

  • Show you desktop notifications

    notifications

Where it sends data

Destinations our analysis observed Sync Watch contacting. Sending data somewhere is not a finding on its own - an extension that syncs your settings has to talk to its own server - but it is where your data can go, and who else it goes to.

  • server.syncwatch.space

    Sync Watch sends data to server.syncwatch.space. One other extension we have analysed sends data here.

Updated 30 September 2026amo-1012033