Chrome is a user agent. a program with the ability to take the users request, download a video and then show it. Firefox is a user agent. a program with the ab

Chrome is a user agent. a program with the ability to take the users request, download a video and then show it. Firefox is a user agent. a program with the ability to take the users request, download a video and then show it. youtube-dl is a user agent. a program with the ability to take the users request and download a video Youtube has no authentication, nothing is being circumvented.