Youtube Overlay Remover by onekanaka

Toggle for hiding the <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/577585700e711c66b2f847e9c2ba66f07706960fe129e88008d23cb2a93a014c/http%3A//youtube.com" rel="nofollow">youtube.com</a>'s HTML5 player overlay, that blocks vision at the top and bottom of the video when moving the mouse or pausing, in and out of full screen. Use Shift+Alt+X as default shortcut, or change it in the Extensions Manager.