A quote from their blog: From Yahoo!'s point of view, any type of signed-in user involving with Yahoo! solutions is a valued customer, whether she confirms using a Yahoo!, Facebook, or Google ID.
Sign In Yahoo Mail Through 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. Then open web page www.yahoomail.com on it. To launch their brand-new "one-click" sign-in merely click the "Sign in with: Facebook" symbol on the Yahoo! login screen. That's all you need; to get accessibility of your Yahoo mail account.
Login to Yahoo Mail account on Mac computer
If you are an individual of Mac computer after that Safari have to be your web browser. Safari is the very best browsing service for Mac OS; Safari is quick, faster as well as easy to use web browser. You could easily access your Yahoo Mail account with it. See, the best ways to login with Yahoo mail account on Safari web browser. Merely open Safari and also type www.yahoomail.com; you will certainly be directed to Yahoo mail sign-in page. To launch their brand-new "one-click" sign-in merely click the "Sign in with: Facebook". You are after that fully authorized right into Yahoo!
Nevertheless, a word to the wise- you still will not be able to sign into a mobile or desktop client making use of Google OpenID.
I hope this article could help you. Thank you ...