Hey, thanks for you feedback. Watch2Gether supports a couple of video sites directly (Youtube, Vimeo…) which means that you can see the video directly in the player. W2gSync (the extension) plays the video in an external window. You can play, pause & seek the video either in the external window or through the Watch2Gether player controls. So what you see in completely normal. For a better user experience you can make the Watch2Gether window a bit smaller so that it does not overlap with the “video window”.