I am running Thunderbird on OS Ventura 13.6.7 on a Macbook Pro. I have used Thunderbird for years to access my Yahoo email account, but today (again after having problems a year or two ago) I keep getting a window popup asking me to login. However it does not ask for a password and when I click on next it gives me an error saying I have to enable cookies on my browser (they are enabled). I can login online but I would much rather continue to use Thunderbird as I have a number of other email accounts as well. I read about others here with similar problems but don't know of any anti-virus in my Mac. Here is a screenshot of the error message.