The authors of this add-on and other extensions should learn to write instructions too. I had a tough time spotting the download button that had been added to the top right of my browser till a reviewer here kindly provided instructions but having discovered that, I still can't download a video I can view the video on an FB page and it's publicly viewable and I am on the URL of the video and not just viewing it from the FB page URL. It just says Video not found. Looks like something's broken.