How to download video in Youtube

What you need :

-Browser : Google Chrome (recommended), Mozilla Firefox, Safari

-Sense

-Internet (of course)

Instructions :

1. Download this

Chrome Below v.36 : Click Here

Firefox v.13.0 and later : Click Here

Safari : Click Here

(Chrome Instruction)

2.After you download it you press the arrow

click show in folder

3. Then open Google chrome press the extension button in the top corner below close button ------>

4. Go to tools --> Extension, then you drag the helper_last.crx file to extension

Install it.

5. If you already install it Restart google chrome

6. Open youtube then choose the video you want to watch then it will show this 

Press download then choose the format and quality

Download from Vimeo.com and Dailymotion.com»

On the page, where you watch a video file, appears the "Download" button, which lets you save video in desired quality.

Download from VK»

SaveFrom.net helper adds a possibility to download mp3, video and albums with user photographs.

If you want to download all music tracks from a particular page, open the menu of the SaveFrom.net helper and use the following command: "Download all mp3 files".