Download Youtube from Ubuntu (Firefox version)

If I have share how to Download Youtube from Mac now, I want to share how to
Download Youtube from Ubuntu

And this is for the tutorial

Click for Tutorial :

1. Download and install add ons flash got for firefox from Here
2. After you have installed it, you can download any video on youtube with your Ubuntu.
And this is for the example video that I want to download

Click for Example :

1. Go to http://www.youtube.com => Choose video that you want to download => Click on icon near from forward icon => Choose where you want to save your video => Wait until the download process finished

2. And done! You have successfully download video from youtube (This ScreenShot I take when i played the Video on my movie player

Thanks for visiting, feel free to get your comment :D