Setup Apple Email in Mozilla Thunderbird

Setup Apple Email in Mozilla Thunderbird

I am having problems in setting an Apple Mail account in Mozilla Thunderbird 91.3.2 (64-bit) current version.

Having spoken with a very helpful Apple Support team member, it appears that Thunderbird’s server settings are correctly set up (including passwords etc).

I notice on the Apple Community so users have recently had this problem too. I am hoping to find

a fix which may be associated with the use of macOS Monterey v12.0.1?

Any further assistance would be welcome thanks.