What's app duck!? is a free Chrome add-on developed by chadi.messmer that allows you to add cute ducks to your Facebook experience. With this add-on, you can bring a touch of fun and whimsy to your Facebook feed.

This add-on is specifically designed for use with Facebook and works seamlessly with both the light and dark mode. Whether you're scrolling through your news feed or chatting with friends, you can enjoy the company of adorable ducks that appear throughout the Facebook interface.

What's app duck!? is a simple and lightweight add-on that adds a unique and playful element to your Facebook browsing. If you're looking to add some charm to your social media experience, give What's app duck!? a try.

Please note that this add-on is only compatible with the Chrome browser.