FBTake's answer:
vGet Extension - Downloads videos embedded in websites or casts them to your Smart TV.
FDOWN.net - Download Facebook videos and save them without using Java or installing software.
Video Downloader Professional - Video Downloader Professional (VDP) is an pretty smart and fast tool to catch videos from YouTube.
SnapSave - SnapSave allows you to download your favorite Facebook Videos in HD qualities, including 1080p, 2K, and 4k on any device.
Online Download Manager - Video downloader, music downloader, images downloader, files downloader
FastVid - FastVid offers a Video Downloader for Facebook that allows you to select any video from FB, copy its URL, paste it into the field, and click on download to save it to your device.