Steps to Download YouTube Video using Google Chrome extension
- Download the chrome extension file here (savefrom.net)
- Click on the icon on the browser toolbar and select "More tools" - "Extensions".
- Drag and drop the extension file "helper_last.crx" from the folder you've download it to the extension page and simply press "Add" button in the appeared popup.
- Restart Chrome browser
- Open YouTube.
- Find a Download button just below YouTube Video Player.
Thanks