Video DownloadHelper is the most popular of the video downloading add-ons out for the FireFox web browser.
So with Video DownloadHelper you can easily download your favourite youtube video or any kind of a video in a web page where they don't give the privileged to download.
It is easy to install this plugin and only requirement you should be having is that you have install FireFox web browser.
So install this plugin and start downloading your favorite web videos.
Visit:- Video DownloadHelper Plugin for FireFox!!