UPDATE 2021: This method still works to help you download YouTube playlists and to download YouTube videos on your Android smartphones, try vanced YouTube. So, I found some beneficial YouTube channels with excellent content that are useful to me, I usually use the IDM grabber extension to grab the YouTube videos download links which enable me to download YouTube videos, but I quickly ran into a problem. Download Youtube playlists with Playlist downloader to download an entire YouTube playlist using IDM (Internet Download Manager).
