copy this source address. When you copy the address, chrome (if that's what you are using) does the html replacement for the ampersand characters. You will need to put them back. So replace the "& a m p ;" (< had to space that so it doesn't get converted here) separators in the address with just & - use notepad find and replace or something ) and paste in another tab. Drop any parts of the URL that have frame sizing etc.. so you address should look like this:, Facebook will not allow developers pre-fill messages. Developers may customize the story by providing OG meta tags, but it's up to the user to fill the message. This is only possible if you are posting on the user's behalf, which requires the user authorizing your application with the publish_actions permission. AND even then:, Facebook downloads the audio and the video separately, so get the audio link from the google chrome inspector, by right click on the video and choosing inspect ,going to Inspector, Network Tab, and checking the links, use filter:larger-than:50k in the filter area to select bigger files (change 50k according to the length of your video), look in .