Is YouTube Downloader (UDL Helper) safe?

Low risk

YouTube Downloader (UDL Helper) sends browser cookies to a third-party tracking domain before the user accepts any consent prompt.

On first install, the extension makes a credentials-included fetch to r.clckgo.online/user, transmitting any stored cookies for that domain without waiting for user consent. After consent is granted, the extension also POSTs the current page URL, a persistent device UUID, and browser metadata to api.videodlservice.com on navigation events across YouTube, Instagram, and OK.ru. When a user views a video page, metadata including title, description, channel name, and upload date is collected and sent alongside the same UUID to api.videodlservice.com.

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

unidownloader.comv0.7.68.0Firefox Add-ons
20Risk

AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.

Publishers can request a review.

Data recipients

r.clckgo.onlineapi.videodlservice.com
Updated 17 September 2026amo-2717016