Do not purchase the gandi account if you already have an email account.

Select Existing Mail Account and add your Yahoo details. You can add as many account as you want. I do not think anyone has found a limit if there is one.

In the Thunderbird world Existing Mail Account means one that you have already established with an email provider not one that you have already installed into Thunderbird.

JohnnyNet said

I have several questions: i have 2 gmail accounts and receive email for each in different tabs in T.bird. It works great. I want to add a YAHOO address and create a third tab in the client for sending and receiving yahoo mail. Do I need a new profile to do this? If I choose to use my existing gmail email will adding yahoo wipe out or delete my gmail accounts? Mozilla's interface is really confusing on this. If I do not want use gandi there is a button at the bottom of the dialogue box which says: "Skip this and use my existing email". I'd love to if the specific needs I have were addressed here. None of the help docs address this. Is adding a yahoo address an "existing email"? Seems to me adding Yahoo would be ADD A NEW ADDRESS FROM ANOTHER SERVICE PROVIDER. This is where the confusion starts. God software UX can be dreadful. I'd love a clean, easy-to-understand answer. thx JB

THANK YOU PROBLEM SOLVED JOHNNYNET