not receiving ubuntu desktop thunderbird yahoo emails since July 2026 esr update

Please explain in detail

• what you're doing,
• what happens,
• what you expect to happen.

Is there any error message?

I was using 140esr applications Firefox & Thunderbird and doing a normal esr update that ended with a Thunderbird error crash report that would not clear. So I reinstalled my Ubuntu Desktop image which removed the Thunderbird error. However, now I have 153(not esr) applications and Thunderbird will not setup or download the Yahoo emails. Please explain how to switch this system over to ESR if that is the problem. ...... (Please Note: I have a 2nd Ubuntu Desktop laptop computer with 140esr applications Firefox & Thunderbird that I DID NOT UPDATE and it is still working just fine receiving Yahoo emails.)