Mozilla has announced the availability of an experimental new add-on for Firefox that is designed to import information about the user’s contacts from a variety of Web services and other sources. The add-on makes contact details easily accessible to the user and can also selectively supply it to remote Web applications. The initial implementation can import data from Gmail, Twitter, and the local system address book on OS X. It can optionally use the Gravatar service to find contact avatars.

via Mozilla Labs builds add-on to bring address book to Firefox.