Add a video download button in Youtube official website

Many people cannot download video files from youtube.But Youtube is a very popular video watching social netwotin site.In this post i will tell you how can you add a download button on youtube easily and download youtube video easily.So first of all..

1)Go this site http://en.savefrom.net/
2)Click Install in the upper right corner
3)Download the software and install it
5)Install a addon Taampermonkey
4)Done

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