Is YouTube Adblocker safe?

Medium risk

YouTube Adblocker injects a hidden remote iframe from modal.style on every website after an eight-hour delay.

Its all-sites content script runs on every HTTP and HTTPS page, then after the post-install delay appends a hidden sandboxed iframe whose source resolves to modal.style/ini. That request can expose the current page context through normal browser request metadata such as URL/referrer and IP address; the same content script also accepts page messages that can return frame URLs or add DOM elements.

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

Ads-freev3.2.0Firefox Add-ons
43Risk

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 3.2.0. 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

  • Act on the current tab, but only after you click the extension

    activeTab

  • Store data in your browser

    storage

  • Block and redirect the requests your browser makes

    declarativeNetRequest

declarativeNetRequestWithHostAccess

Where it sends data

Destinations our analysis observed YouTube Adblocker 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.

  • modal.style

    YouTube Adblocker sends data to modal.style. No other extension we have analysed sends data here.

Updated 30 September 2026amo-2985520