A quote from their blog site: From Yahoo!'s viewpoint, any signed-in user engaging with Yahoo! services is a valued user, whether she authenticates making use of a Yahoo!, Facebook, or Google ID.
How To Open Yahoo Mail Using Facebook
Login to Yahoo Mail account on PC/Desktop computer system
First you require a username and also password; currently open web browser from your computer/desktop. After that open web page www.yahoomail.com on it. To initiate their brand-new "one-click" sign-in just click the "Sign in with: Facebook" icon on the Yahoo! login screen. That's all you require; to get accessibility of your Yahoo mail account.
Login to Yahoo Mail account on Mac computer system
If you are a customer of Mac computer then Safari need to be your internet browser. Safari is the very best surfing service for Mac OS; Safari is quick, much faster and also easy to use internet browser. You can quickly access your Yahoo Mail account with it. See, the best ways to login with Yahoo mail account on Safari internet browser. Just open Safari and also kind www.yahoomail.com; you will certainly be routed to Yahoo mail sign-in web page. To launch their brand-new "one-click" sign-in just click the "Sign in with: Facebook". You are after that totally signed right into Yahoo!
Nevertheless, a suggestion- you still won't have the ability to authorize right into a mobile or desktop computer customer making use of Google OpenID.
I hope this post could help you. Thanks ...