(Firefox support still isn't by default according to that.) Some more detailed use case information along with screenshots of the flows: https://developers.go

(Firefox support still isn't by default according to that.) Some more detailed use case information along with screenshots of the flows: https://developers.google.com/web/fundamentals/payments/merchant-guide/deep-dive-into-payment-request https://developers.google.com/web/fundamentals/payments/merc...