A quote from their blog: From Yahoo!'s viewpoint, any kind of signed-in customer involving with Yahoo! services is a valued individual, whether she confirms utilizing a Yahoo!, Facebook, or Google ID.
Yahoo Mail Sign In With Facebook
Login to Yahoo Mail account on PC/Desktop computer
First you require a username and password; now 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 simply click the "Sign in with: Facebook" symbol on the Yahoo! login display. That's all you require; to get gain access to of your Yahoo mail account.
Login to Yahoo Mail account on Mac computer
If you are a user of Mac computer system then Safari must be your internet browser. Safari is the most effective surfing option for Mac OS; Safari is quick, much faster as well as easy to use web browser. You can 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 type www.yahoomail.com; you will be guided to Yahoo mail sign-in web page. To initiate their brand-new "one-click" sign-in just click the "Sign in with: Facebook". You are then fully authorized into Yahoo!
Nonetheless, an advice- you still will not be able to authorize into a mobile or desktop client utilizing Google OpenID.
I wish this article can assist you. Thank you ...