A quote from their blog site: From Yahoo!'s point of view, any signed-in user involving with Yahoo! services is a valued individual, whether she verifies utilizing a Yahoo!, Facebook, or Google ID.
Sign Into Yahoo Using Facebook
Login to Yahoo Mail account on PC/Desktop computer system
First you need a username and also password; now open internet browser from your computer/desktop. Then open page www.yahoomail.com on it. To launch their brand-new "one-click" sign-in merely click on the "Sign in with: Facebook" symbol on the Yahoo! login display. That's all you need; to get gain access to of your Yahoo mail account.
Login to Yahoo Mail account on Mac computer system
If you are a customer of Mac computer then Safari must be your internet internet browser. Safari is the best browsing option for Mac OS; Safari fasts, faster and also easy to use browser. You could conveniently access your Yahoo Mail account with it. See, how you can login with Yahoo mail account on Safari browser. Just open Safari as well as kind www.yahoomail.com; you will certainly be guided to Yahoo mail sign-in page. To initiate their new "one-click" sign-in merely click on the "Sign in with: Facebook". You are after that completely signed into Yahoo!
Nonetheless, an advice- you still will not have the ability to sign into a mobile or desktop customer using Google OpenID.
I hope this post could assist you. Thank you ...