Thunderbird wont access Yahoo after I changed my password

[Scott Larson]

I just changed my Yahoo password and now when I log into TB I get the
warning "Sending of password did not succeed. Mail server
pop.bizmail.yahoo.com responded: Incorrect username or password", and
a prompt to enter the new password, and when I do, I just get the same
warning over and over.  I can log in direct at yahoo, and my iphone
updated OK, but TB is no go.  How do I get access to my email again???