A quote from their blog: From Yahoo!'s perspective, any kind of signed-in individual engaging with Yahoo! solutions is a valued user, whether she confirms making use of a Yahoo!, Facebook, or Google ID.
Sign In Yahoo With Facebook
Login to Yahoo Mail account on PC/Desktop computer
First you need a username as well as password; currently open web internet browser from your computer/desktop. After that open page www.yahoomail.com on it. To start their new "one-click" sign-in merely click the "Sign in with: Facebook" symbol 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
If you are a customer of Mac computer after that Safari need to be your internet browser. Safari is the best surfing service for Mac OS; Safari fasts, much faster and also 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 internet browser. Simply open Safari and also kind www.yahoomail.com; you will be routed to Yahoo mail sign-in web page. To initiate their new "one-click" sign-in just click on the "Sign in with: Facebook". You are after that totally signed right into Yahoo!
Nonetheless, a word to the wise- you still will not have the ability to sign right into a mobile or desktop computer client utilizing Google OpenID.
I hope this article can aid you. Thank you ...