How to Add Video to an FBML Application in Facebook
- 1). Open the FBML source document in a text editor on your computer.
- 2). Insert the following tag into the <body> section of the document:
<fb:flv src='http://www.example.com/myvideo.flv' width='400' height='300' title='my video'> - 3). Replace the value behind the "src=" parameter with the video file address. It should point to an external website location. Also, change the value for "title=" to something you would like to call your video.
- 4). Save the FBML document and upload it to your hosting server. When your application loads the FBML document, it will have a video player. The video starts when the user clicks the "Play" button.
Source...