ytma! automatically converts YouTube(TM), Vimeo, Vine, Soundcloud, WebM, and MP4 links into real embedded videos.
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Updates YouTube data API
HTML5 WebM and MP4 support
Soundcloud and Vine support
HTML5 videos of the same ID will now open and close on first view/first close
Window scroll interface detects when descriptions and videos are visible and loads them
dropboxusercontent.com (Dropbox) to run scripts! (Whitelist it, NotScript users.)
Firefox 4+
Opera 10+
Chrome 9+
IE 9+*
If you do not want to install the user script or would like to run the script on any site, use the this option on any of these browsers, including mobile editions.
*IE9 doesn't support user scripts, so you must use the bookmarklet instead.