Mozilla developed the Social API to enable social services and providers to integrate directly into Firefox to make users browsing experience more social, customizable and personal. The Social API makes it easy for you to keep up with friends and family without having to switch between or open new tabs.
We will expand testing with additional social providers in Firefox Nightly, including CliqZ and Mixi, MSN Now and Weibo soon.
We are really excited about the possibilities that Social API brings to the future of browsing including ways to integrate even more social providers, e-mail, finance, news and other applications and services into your Firefox experience. Stay tuned for more details and when we start beta testing the the additional social providers.