1.Open facebook on your web browser (log in into your facebook account)
2.Find the video post you want to copy
3.Below every post there’s a timestamp(like just now,3 minutes ago,here its 1 hour)
4.Click on this timestamp,this will open the post on a new page.
5.Now select the URL,right click on your mouse and select copy.
6.Your facebook post link is copied,now you can you can share it wherever you want.