Play the video you'll like to download on Facebook. Let it play to get a handful of seconds and look in the Network tab during that. Long strings of numbers will appear every couple of seconds.???? ???? ?????? ?????????? ?????? ??? ?????? ????? ??????? ?????? ??? ??? ????? ????? ???? ?????? ?????. ?? ???? ????? ??? ???? ?????? ????? ???? ?? ??? ??