Is YouTube mp3 safe?

Clean risk

YouTube mp3 sends the full YouTube page URL to a third-party conversion service when the user clicks the injected Download button.

The extension injects a fixed Download button into every YouTube page. When clicked, it opens www.rcyoutube.com/convert in a new tab, appending the complete window.location.href as a query parameter. This transmits the full page URL — rather than just the video ID — to a third-party site on every download action.

Addon Developerv4.6Firefox Add-ons
0Risk
Who publishes it

Addon Developer - 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
Addon Developer

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 4.6. Asking for a permission is not a finding on its own - it is what the extension can do if it chooses to.

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

    activeTab

Where it sends data

Destinations our analysis observed YouTube mp3 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.rcyoutube.com

    YouTube mp3 sends data to www.rcyoutube.com. No other extension we have analysed sends data here.

Updated 30 September 2026amo-2608876