A quote from their blog site: From Yahoo!'s point of view, any type of signed-in individual engaging with Yahoo! services is a valued user, whether she confirms utilizing a Yahoo!, Facebook, or Google ID.
Facebook Login to Yahoo
Login to Yahoo Mail account on PC/Desktop computer system
First you need a username and password; now open internet internet browser from your computer/desktop. Then open web page www.yahoomail.com on it. To initiate their brand-new "one-click" sign-in simply click on the "Sign in with: Facebook" icon on the Yahoo! login display. That's all you need; to get accessibility of your Yahoo mail account.
Login to Yahoo Mail account on Mac computer system
If you are an individual of Mac computer system then Safari should be your web internet browser. Safari is the most effective browsing option for Mac OS; Safari fasts, quicker as well as easy to use browser. You can conveniently access your Yahoo Mail account with it. See, ways to login with Yahoo mail account on Safari web browser. Simply open Safari and kind www.yahoomail.com; you will certainly be guided to Yahoo mail sign-in web page. To initiate their new "one-click" sign-in merely click on the "Sign in with: Facebook". You are after that totally signed into Yahoo!
However, a word to the wise- you still will not be able to authorize right into a mobile or desktop client using Google OpenID.
I hope this post can help you. Thanks ...