Is YouTube Downloader 2.0 safe?

Low risk

YouTube Downloader 2.0 sends visited site origins to cloud.sky4data.com and follows its tab-opening instructions.

When pages load, the extension extracts the site origin from the tab URL and posts it with an extension identifier to cloud.sky4data.com. Responses from cloud.sky4data.com can also tell the extension to open a new tab, choose whether it is active, and close it after a provided delay.

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

Vikingusv3.4Firefox Add-ons
16Risk
Who publishes it

Vikingus - no other listings under this identity

What this publisher told the store about itself, and the other listings that told it the same thing.

Publisher
Vikingus
Website
all-downloaders.com

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 3.4. 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 com

    http://*.com/* and 1 more

  • Read and change your data on net

    http://*.net/* and 1 more

  • Read and change your data on ru

    http://*.ru/* and 1 more

  • Read and change your data on org

    http://*.org/* and 1 more

  • Read and change your data on by

    http://*.by/* and 1 more

  • Read and change your data on zone

    http://*.zone/* and 1 more

  • Read and change your data on biz

    http://*.biz/* and 1 more

  • Read and change your data on top

    http://*.top/* and 1 more

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

    activeTab

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

    tabs

  • Store data in your browser

    storage

  • Start, monitor and manage your downloads

    downloads

Where it sends data

Destinations our analysis observed YouTube Downloader 2.0 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.

  • cloud.sky4data.com

    YouTube Downloader 2.0 sends data to cloud.sky4data.com. No other extension we have analysed sends data here.

Updated 30 September 2026amo-1470115