bad

This don't download the video, instead it drops you to a third party website.

Not working.

The add-on adds a toolbar icon which opens the author's website in a new tab and offers no additional functionality. The external website is obviously incapable of downloading private videos without providing your Facebook login details. Addon is a waste of time.

Requires me to copy/paste URL to the video to the new tab by hand. This was not in this add-on description and has resulted in negative experience for me today.

Great app works great but sometimes the buttons cover the X to close and its not as easy when scrolling and the mini vid pops up and you cant close it.