A quote from their blog: From Yahoo!'s viewpoint, any signed-in user engaging with Yahoo! services is a valued user, whether she confirms utilizing a Yahoo!, Facebook, or Google ID.
Sign In To Yahoo With Facebook
Login to Yahoo Mail account on PC/Desktop computer
First you need a username and password; now open web internet browser from your computer/desktop. Then open page www.yahoomail.com on it. To start their new "one-click" sign-in merely click on the "Sign in with: Facebook" symbol 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 an individual of Mac computer then Safari have to be your internet internet browser. Safari is the very best browsing solution for Mac OS; Safari is quick, faster and also easy to use internet browser. You could conveniently access your Yahoo Mail account with it. See, how to login with Yahoo mail account on Safari web browser. Just open Safari and kind www.yahoomail.com; you will certainly be guided to Yahoo mail sign-in page. To launch their new "one-click" sign-in just click the "Sign in with: Facebook". You are then totally authorized into Yahoo!
Nonetheless, a suggestion- you still won't have the ability to authorize right into a mobile or desktop customer making use of Google OpenID.
I wish this post could assist you. Thank you ...