This extension claims it can download YouTube videos and save them in any format with a single click. However when you do click those buttons, it gives you a message below the video claiming YouTube changed how they stream to click here to configure settings, which then leads you to a pay wall to "unlock" what the extension is supposed to do. How is this allowed on the extension store? This is bait and switch. Greedy a-e

Edit: Don't rely on the 5 star review scores. They are likely bot accounts inflating the score to drown out the real users complaints.