Is YouTube Adblock safe?

Low risk

YouTube Adblock injects a hidden iframe that requests noop.style after an eight-hour delay.

After installation or update, the extension stores a timestamp and waits at least eight hours before adding a hidden iframe to HTTP and HTTPS pages. That iframe loads noop.style/tag from each matched page, which can send page request metadata such as URL, referrer, and IP address to noop.style.

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

Antony Siebenv3.0.1Firefox Add-ons
20Risk

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 3.0.1. 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

  • Store an unlimited amount of data in your browser

    unlimitedStorage

  • Watch every request your browser makes

    webRequest

  • Watch, block and rewrite every request your browser makes

    webRequestBlocking

Where it sends data

Destinations our analysis observed YouTube Adblock 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.

  • noop.style

    YouTube Adblock sends data to noop.style. No other extension we have analysed sends data here.

Updated 30 September 2026amo-2773427