Is Windowed - floating Youtube/every website safe?

Low risk

Windowed lets any web page ask its content script to move the current tab into an extension-created popup window.

Windowed injects a content script on all pages and listens for page messages that request windowing actions. A page can use those messages to trigger the extension's popup flow, which moves the current tab into a popup window; the evidence does not show user data sent to an external host.

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

Michiel Dralv31Firefox Add-ons
18Risk

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 31. 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>

  • Store data in your browser

    storage

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

    tabs

Updated 30 September 2026amo-864204