I'm not sure where you are in the transition, but these two links may prove helpful. https://www.cox.com/residential/support/coxnet-email-transitioning-to-yahoo.html https://support.mozilla.org/en-US/questions/1446501#answer-1651121

<blockquote> Cox.net is moving their web base to yahoo mail, yet still using my original email bjacob3@cox.net. </blockquote> Correct. This isn't about just web mail though. The account can be access through both, webmail, and Thunderbird. <blockquote> So I had to go to yahoo and set up my original email thru them and change password for them. </blockquote> Not sure what exactly you did, please explain in more detail. It sounds like you created '''another''' Yahoo account not related to the one Cox already moved to Yahoo. <blockquote> Yet even tho I won't go thru yahoo, I still want my thunderbird to work </blockquote> Effectively, you now have a Yahoo account with a Cox email address. Is "go through Yahoo" an odd way to say you're using Yahoo webmail? As stated above, you can set up your Cox/Yahoo account in Thunderbird as well. <blockquote> I still can get to my thunderbird mail </blockquote> You lost me. There is no such thing as "thunderbird mail". You do have an account with Yahoo, not with Thunderbird.