Is Channel Blocker safe?

Low risk

Channel Blocker loads Google Fonts stylesheets from its extension pages when those pages open.

The extension's configuration, popup, FAQ, and bug-report pages include remote CSS from fonts.googleapis.com. When those UI pages load, the browser requests the stylesheet and sends normal request metadata, such as IP address and headers, to Google Fonts.

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

Time Machine Developmentv2.2.4Firefox Add-ons
15Risk

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 2.2.4. 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 www.youtube.com

    *://www.youtube.com/*

  • Store data in your browser

    storage

  • Store an unlimited amount of data in your browser

    unlimitedStorage

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

    tabs

  • Add items to the right-click menu

    contextMenus

Where it sends data

Destinations our analysis observed Channel Blocker 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.

  • fonts.googleapis.comwidely used

    Channel Blocker sends data to fonts.googleapis.com. A widely used service: 123 other extensions we have analysed send data here.

Updated 30 September 2026amo-982626