Bookmarklet for HTML 5 video (YouTube) speed controls Quick Start (Chrome): Open Bookmark Manager Add a new bookmark Name it SpeedVid For the URL paste in the entire contents of the file bookMarklet.js Save the bookmark Point you browser at your favorite HTML 5 video website (like YouTube) Open the SpeedVid bookmark Use the Following keys with Ctrl+Shift to manipulate playback: "O" play "P" pause