The good news is that Kiwi's closure isn't a complete loss of work, as the browser's extension code has been integrated with Microsoft Edge Canary, a positive note on what is otherwise sad news ...

Kiwi Browser: Kiwi Browser is a Chromium-based browser that supports Chrome extensions on Android. It is fast, secure, and allows you to install extensions directly from the Chrome Web Store ...

It's sad to see the Kiwi Browser shutter, but at least its extension code will continue through Microsoft Edge ...