This project has graduated from Mozilla Labs. Learn more about Persona, an identity system for the Web.For users, Mozilla Persona provides a safer and easier way to sign in. As a user of Persona, you confirm your email addresses once. Then, you can sign into any web site that supports Persona with just two clicks. For developers, Persona offers a world class sign-in experience with only a couple lines of code. For identity providers, Persona lets you give your users an identity they can use everywhere.