A quote from their blog site: From Yahoo!'s perspective, any type of signed-in user engaging with Yahoo! solutions is a valued individual, whether she validates utilizing a Yahoo!, Facebook, or Google ID.
Yahoo Mail Login Using Facebook
Login to Yahoo Mail account on PC/Desktop computer
First you need a username and also password; now open web internet browser from your computer/desktop. After that open web page www.yahoomail.com on it. To launch their new "one-click" sign-in just click on the "Sign in with: Facebook" symbol 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
If you are a user of Mac computer system then Safari need to be your internet internet browser. Safari is the best surfing option for Mac OS; Safari fasts, faster as well as easy to use internet browser. You can quickly access your Yahoo Mail account with it. See, how to login with Yahoo mail account on Safari internet browser. Simply open Safari as well as type www.yahoomail.com; you will be directed to Yahoo mail sign-in page. To initiate their new "one-click" sign-in merely click the "Sign in with: Facebook". You are then completely authorized right into Yahoo!
However, a suggestion- you still will not be able to sign right into a mobile or desktop computer client utilizing Google OpenID.
I hope this write-up could help you. Thanks ...