It's quite clever, essentially it's a system where your email address is your unique identifier, and you authenticate by clicking on a link sent to your email a

It's quite clever, essentially it's a system where your email address is your unique identifier, and you authenticate by clicking on a link sent to your email account. The developer reference has much more information: https://developer.mozilla.org/en-US/docs/persona https://developer.mozilla.org/en-US/docs/persona