Surprised at some of the bad reviews. So far, so good, that is, this is the best downloader I have found for Firefox.

The perfomance of this addon is extremely slow. I tried udl helper, it's fast and convenient

приложение отличное,все скачивается,нужно на иконку справа от веб-страницы нажать и все(the application is excellent, everything is downloaded, you need to click on the icon to the right of the web page and that's it)

One more fake application. It does NOTHING in facebook. Just ignore it.
I wonder how they let this app to exist here.