How to download Facebook video to Mobile Phone:

On your Facebook app, open the video you would like to download, then tap 3 vertical dots on the top right of the Facebook video..

Tap 3 Dots

After tapping the dots, scroll down and select "Copy Link" menu option, then the link to your video will be copied.

Select Copy Link

With the video url copied, open this site then paste that link and tap GO button to download your video.

Paste Copied Link