Is BlockTube safe?

Medium risk

BlockTube posts stored YouTube blocking rules into the YouTube page context on matched navigations.

When BlockTube is enabled and a YouTube or mobile YouTube page loads, it posts its compiled storage data into the page via a window message. The payload can include saved video, channel, title, comment, JavaScript, video length, and option filters, so scripts running in that page context can read the user's blocking rules.

Part of this rating comes from analysis signals we haven't published as detailed findings yet.

BlockTubev0.4.8Chrome Web Store
45Risk
Who publishes it

BlockTube - no other listings under this identity

What this publisher told the store about itself, and the other listings that told it the same thing.

Publisher
BlockTube

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 0.4.8. Asking for a permission is not a finding on its own - it is what the extension can do if it chooses to.

  • Store data in your browser

    storage

  • Store an unlimited amount of data in your browser

    unlimitedStorage

Where it sends data

Destinations our analysis observed BlockTube 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.

  • www.youtube.com

    BlockTube sends data to www.youtube.com. 18 other extensions we have analysed send data here.

  • m.youtube.com

    BlockTube sends data to m.youtube.com. 4 other extensions we have analysed send data here.

Updated 30 September 2026bbeaicapbccfllodepmimpkgecanonai