Over several years I've used several different Youtube download add-ons. Easy Youtube Video Downloader Express is by far the best I've found! Recently I logged out of my main Youtube account to another. When I logged in again the Easy Youtube Video Downloader Express download button was missing from it's usual position on the Youtube window. I sent an email to Easy Youtube Video Downloader Express support and soon the button was back! Thanks Easy Youtube Video Downloader Express!!! Great Add-On!