Step by Step:

1. Download Kiwi Browser from the Link given above.
2. After downloading the browser open our website app.desibundle.org in that website.
3. Now after opening our website kindly click on download our Extension. 
4. After downloading extension, go to the three dots in the Kiwi Browser and click on extensions.
5. After clicking Extension click on .zip file and select the downloaded file in the extension that you downloaded from our website. 
6. Just Select it and our extension will be installed.