the email used for FireFox - glennww@cox.net was transferred to Yahoo. I can not seem to download emails sent to this email address into Firefox as I was able to do prior to shifting to Yahoo. I went in and changed the password to the new password and to the new POP server (pop.mail.yahoo.com) but emails can not be retrieved. What am I doing wrong. I deleted the email account glennww@cox.net and tried to re-install as a new account, but it was not accepted. I don't know where to go