A quote from their blog site: From Yahoo!'s viewpoint, any type of signed-in customer engaging with Yahoo! services is a valued individual, whether she validates utilizing a Yahoo!, Facebook, or Google ID.
Yahoo.com Sign In Facebook
Login to Yahoo Mail account on PC/Desktop computer system
First you require a username as well as password; now open internet browser from your computer/desktop. Then open web page www.yahoomail.com on it. To initiate their brand-new "one-click" sign-in merely click on the "Sign in with: Facebook" icon on the Yahoo! login display. That's all you need; to get access 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 have to be your web browser. Safari is the most effective surfing service for Mac OS; Safari fasts, much faster as well as easy to use web browser. You can conveniently access your Yahoo Mail account with it. See, ways to login with Yahoo mail account on Safari web browser. Just open Safari and kind www.yahoomail.com; you will certainly be routed to Yahoo mail sign-in web page. To launch their brand-new "one-click" sign-in simply click on the "Sign in with: Facebook". You are then totally authorized into Yahoo!
However, a word to the wise- you still won't be able to authorize into a mobile or desktop computer client utilizing Google OpenID.
I hope this post could assist you. Thanks ...