How to install chrome extension(Youtube downloader) from any other website except chrome web store?

Here we want to download videos from Youtube. As you know few days back chrome changes its rules. Now chrome doesn't allow any extension to get install if it doesn't belong to chrome web store.
Here is a little easy trick to install any chrome extension. I am going to install youtube video downloader extention from a website .
Follow the steps below:

• Open a website where your extension are. like in our case chromeextensions.org.

• Find the extension you want to install like in our case Youtube video downloader.

           

• (Copy extension  Url) Right click on the ADD to CHROME button and copy link url.

                 

• Download this Url using any download manager.(extension will be .crx).

           

• Now open google chrome and goto (settings) extensions page.

          

• Drag that downloaded extension(from your hard drive) to chrome extensions page(above page).

• Extension has been installed.

• You will get a download button below youtube video.

• Click on the arrow to choose file type.

          

• Enjoy.