The extension reads the active tab URL after the user clicks Download and transfers that URL plus the selected format to the installed local helper. The helper validates the URL, extracts the YouTube video ID, and runs yt-dlp to retrieve the title and requested media from YouTube and its media servers. Those services receive the video requests and the user's IP address.

The helper writes downloaded media and title-based filenames to the user's Downloads/YouTube folder. The extension holds progress/error messages in memory. Files remain until the user deletes them. Browser cookies, passwords, and browsing history are not read. No developer-operated server, analytics, or telemetry is used.

Installing/updating dependencies contacts their package repositories or download providers. This includes pip/yt-dlp installation and the user's installation of Python, FFmpeg, and Deno.

Firefox permissions are activeTab and nativeMessaging. Built-in data consent declares browsingActivity and websiteContent because the URL is passed outside the browser and the helper retrieves media. These operations are for downloads explicitly requested by the user.