Decent app that lets you download videos from just about any site, it's just not clear how to. – Video Grabby - Video Save & Video Editor Review

To the reviews saying this app doesn't let you download videos from others let me explain because it is kinda hidden. Once you open app and log into facebook tap video maker on bottom then you're given 4 choices. Tap top choice which will say Record facebook page. You'll see a list of your videos but on the bottom there is a URL window where you can type in any website and any videos on that web site will have a dialog show next to each video with a option to download. So to download your facebook friends videos just type in facebook.com in the URL window then navigate to your friends profile and scroll down or find their video folder.
Review by iSlandeRon on Video Grabby - Video Save & Video Editor.