A quote from their blog: From Yahoo!'s viewpoint, any kind of signed-in individual engaging with Yahoo! services is a valued customer, whether she confirms using a Yahoo!, Facebook, or Google ID.
Facebook Yahoo Sign In
Login to Yahoo Mail account on PC/Desktop computer system
First you need a username and password; currently open internet internet browser from your computer/desktop. After that open web page www.yahoomail.com on it. To start their brand-new "one-click" sign-in just click on the "Sign in with: Facebook" icon on the Yahoo! login screen. That's all you require; to obtain accessibility of your Yahoo mail account.
Login to Yahoo Mail account on Mac computer system
If you are a user of Mac computer after that Safari must be your web internet browser. Safari is the most effective browsing solution for Mac OS; Safari fasts, much faster as well as easy to use web browser. You could easily access your Yahoo Mail account with it. See, how you can login with Yahoo mail account on Safari web browser. Merely open Safari as well as kind www.yahoomail.com; you will certainly be guided to Yahoo mail sign-in web page. To start their brand-new "one-click" sign-in just click the "Sign in with: Facebook". You are after that fully signed right into Yahoo!
Nonetheless, an advice- you still won't have the ability to sign right into a mobile or desktop computer client using Google OpenID.
I wish this write-up can assist you. Thank you ...