Fullscreen Anything

Simply click the Fullscreen Anything button (or press Ctrl+Space) to make anything that is currently on your screen fill the browser window. Press again to undo and continue browsing. As Fullscreen Anything makes content fill the browser window, rather than the whole screen, you can quickly browse to different tabs while a video continues playing in fullscreen mode. Most videos and games will continue playing seamlessly when maximized. Special care has been taken to ensure perfect compatibility with major video websites and social networks. Support for Youtube includes playlists, html5 video, and auto-HD on maximize.

Requirements:

Google Chrome