Redgifs

redgifs is not a web service for anyone to upload animated gifs and videos. It is adult content related. It should be blocked in your corporate firewall.

download

Lets say you have this link : https://www.redgifs.com/watch/theIdOfTheVideo

The only thing you need to do is to replace watch by ifr.

Your link should like this: https://www.redgifs.com/ifr/theIdOfTheVideo

Now, just right click and save as usual

What's preventing right-click save (on PC a least) is a transparent HTML div that is over the actual video .Video-OverLayer. Block Element, removing what uBlock is suggesting to block, and pasting ##.Video-OverLayer

source: download videos from redgifs