You can try any of the options below to download videos from Facebook site:
Enter or paste the Facebook video link above in the input box and hit the Enter key or
Download button. It will automatically navigate you to the video page where you can preview your video and after confirmation you can download the video.
Download buttons are available below the video.
While watching video on Facebook, just add the word
facebook.com in the link in the address bar of your browser i.e. if you're watching this video:
Then just remove "s" from "https" and add the word
down like this:
Now just load that URL in your browser by pressing Enter key, a new page will load with the download links of the videos and also a preview of the video. Follow above instructions to directly download the video from Facebook.