A quote from their blog site: From Yahoo!'s perspective, any signed-in individual engaging with Yahoo! services is a valued user, whether she confirms making use of a Yahoo!, Facebook, or Google ID.
Sign Into Yahoo with Facebook
Login to Yahoo Mail account on PC/Desktop computer system
First you need a username and also password; now open web browser from your computer/desktop. Then open web page www.yahoomail.com on it. To initiate their new "one-click" sign-in merely click the "Sign in with: Facebook" symbol on the Yahoo! login screen. That's all you require; to get gain access to of your Yahoo mail account.
Login to Yahoo Mail account on Mac computer
If you are a user of Mac computer system after that Safari have to be your internet internet browser. Safari is the very best browsing service for Mac OS; Safari fasts, faster and easy to use web browser. You could quickly access your Yahoo Mail account with it. See, how to login with Yahoo mail account on Safari browser. Just open Safari and kind www.yahoomail.com; you will be directed to Yahoo mail sign-in page. To launch their new "one-click" sign-in just click on the "Sign in with: Facebook". You are after that completely signed into Yahoo!
However, a recommendation- you still won't be able to sign right into a mobile or desktop client utilizing Google OpenID.
I hope this short article could aid you. Thanks ...