Comment by yoavm

I just tried this last week and wrote this tiny Userscript that redirect Youtube videos to their .mp4 source file, so nothing is actually loaded except the video itself. No ads, no "watch next!", no related movies, no comments.

  // ==UserScript==
  // @name youtube-redirect
  // @match         https://www.youtube.com/watch*
  // @run-at document-start
  // @version          1.0
  // ==/UserScript==
  window.stop();
  GM.fetch("https://alltubedownload.net/json?url="+document.location).then(x=> window.location=JSON.parse(x).url);