: This is the most popular video downloader on Firefox. While it is excellent for single videos, downloading full playlists often requires the Companion App (a separate local install) to stitch media streams together or handle high resolutions (4K).
This is arguably the most famous video downloader extension on Firefox. youtube playlist downloader firefox plugin
Downloading videos from YouTube violates their Terms of Service (ToS). This guide is intended for educational purposes only. You should only download videos that you have permission to download, such as: : This is the most popular video downloader on Firefox