Is YouTube™ Downloader Lite safe?

Clean risk

YouTube™ Downloader Lite fetches YouTube player scripts and runs extracted code in a Worker when downloads are requested.

When you click its download button on YouTube, the extension reads the current video page URL and looks up the page's HTML5 player script. It fetches that player JavaScript from YouTube, extracts signature-deciphering snippets, and executes them in a data: Worker to build playable media URLs.

Skottv0.5.6Firefox Add-ons
0Risk

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 0.5.6. 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 youtube.com

    *://*.youtube.com/*

  • Read and change your data on googlevideo.com

    *://*.googlevideo.com/*

  • Store data in your browser

    storage

  • Start, monitor and manage your downloads

    downloads

Where it sends data

Destinations our analysis observed YouTube™ Downloader Lite 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

    YouTube™ Downloader Lite sends data to www.youtube.com. 18 other extensions we have analysed send data here.

Updated 30 September 2026amo-447984