[dilipray]

So, openid by firefox is called persona? I would like to use google, twitter. What are the special features of this? I don't think anybody would like to use firefox OS. But it's good, but it has a heavy competition in the future.

[TheCoelacanth]

1. Privacy: the identity provider can't tell what site you are logging in to.

2. It's decentralized: any email provider can provide Persona authentication for the email addresses that it handles. You don't have to rely on Mozilla to do this except as a fallback for email providers who don't support Persona.