Getting started with Greasemonkey userscripts - CNET
GitHub - domsleee/YouTube-Downloader: Download YouTube videos and audio in multiple formats
GenYouTube - How to download YouTube videos as mp3 - Tuko.co.ke
Resolved] How to Solve SnipMP3 Not Working and Convert YouTube to MP3?
Which is the best free MP3 YouTube downloader? - Quora
Resolved] How to Solve SnipMP3 Not Working and Convert YouTube to MP3?
GitHub - leotakacs/YouTube-MP3-Tampermonkey-Script: An automated Tampermonkey script for extracting and downloading audio from a YouTube video. Uses loader.to's YouTube MP3 site.