what a terrible piece of software. I downloaded a video and once the download was complete, it said that there would be a QR code watermark asking me to purchase. That QR code that covers 1/4th of the video!!! I am not saying that this extension should be free, but man, when it says nothing about such things before download - I just wasted 5 Gigs of my bandwidth. Such kind of sofware that tries to trick you is the worst!