The Pro key only becomes necessary for power users (video editors, archivists, researchers) who process dozens of streams per hour.

– The core Video DownloadHelper add-on for Firefox is free to install and use for basic functionality.

: High-definition videos that stream audio and video separately (DASH) can be merged without a watermark.

Due to Google Web Store policies, the Chrome version cannot download YouTube videos. Users are officially advised to use the Firefox version for YouTube downloads. 3. Recent Concerns & User Feedback

If you have been using Firefox for years to download videos from YouTube, Vimeo, or Facebook, you have almost certainly come across . It is one of the most popular and enduring browser extensions in existence.

: Unlike the Chrome version, the Firefox extension can download YouTube videos; however, many of these require the license to avoid the watermark. Pricing and Purchasing

When you click "Download" on a complex video (like adaptive streaming formats—HLS or DASH), Video DownloadHelper cannot save the file directly via the browser. It needs to use a installed on your computer (Windows, Mac, or Linux).