How to download video from youtube

How to download video from youtube with downloadhelper using firefox browser.
Using DownloadHelper is simple. Just use your browser to visit video sites, when DownloadHelper can do something for you.
When the icon is animated, you can see a small triangle at the right of the icon. Click on this arrow to open the download menu. You can now select directly a file to download.

By default, the downloads are queued and done one by one. That keeps the bandwith usage to a minimum and allows you to browse other page to select new downloads. The screenshots below shows the number of files in the download queue. The number disappears when there is no more download in progress.

It is also possible to download several video files from YouTube at once, without even opening the video pages. Just select a region in a YouTube page containing links and right-click to display the context menu. A new entry offers to download all video files.

Download used Mozilla Firefox