Another little niggle

I have (had) two Email addresses, BT and Yahoo.
Previously, before changing to Comodo Dragon browser, when I clicked on my Yahoo Emails logo,
I was given the choice of 'BT' or 'Yahoo', but now, Dragon buts me straight through to BT Emails, and try
as I might, I can't access my Yahoo Emails.
Any suggestions?
Previously, before changing to Comodo Dragon browser, when I clicked on my Yahoo Emails logo,
I was given the choice of 'BT' or 'Yahoo', but now, Dragon buts me straight through to BT Emails, and try
as I might, I can't access my Yahoo Emails.
Any suggestions?