First, please share the URL of that article so it can be updated. Very important. Second, to create a mailing list, click to 'address books' and then there is a small icon to the right of the 'new contact' button to create mailing list. But, please share that URL you referenced. Thank you.

Hi David, here is the URL as requested. Thanks for your assistance. https://support.mozilla.org/en-US/kb/how-create-and-use-mailing-lists-thunderbird#w_create-a-mailing-list

Thanks. I'll try to get it updated.

I'm trying the same - create a new "mailing list" I've been a Thunderbird user for eons, and supporting with regular donations - thankyou for those supporting the package. I have about 10 emailing list from the past that all show under Personal Address Book. However following the instructions at https://support.mozilla.org/en-US/kb/how-create-and-use-mailing-lists-thunderbird#w_create-a-mailing-list - Tools -> Addressbook then File->New-> there is only "Address book Contact" no "Mail List" - see attached snip

I have Thunderbird 128.5.2esr

I wonder if this has been looked at, or has a bugzilla reference. I can't find anything with https://bugzilla.mozilla.org/buglist.cgi?quicksearch=mailing%20list&list_id=17357633

Since a mailing list is part of the addressbook, look for the icon as shown in attachment. Thank you.