Video Downloader for Facebook supports multi-task downloads, so you can download several FB videos at the same time. The default super download mode can boost your download speed up to 3 times faster than other downloads with its multi-thread download tech. The built-in video player can play all the videos you downloaded.

https://play.google.com/store/apps/details?id=videodownloader.fbvideodownloader.facebookvideodownloader.videodownloaderforfacebook&hl=en_US