I cannot delete or modify an email address in the address book.
Thunderbird 170.7 My son's email address has changed. When I write to him, the old email address appears by default. I cannot delete it from the address book, and I can't… (read more)
Thunderbird 170.7 My son's email address has changed. When I write to him, the old email address appears by default. I cannot delete it from the address book, and I can't change it or edit the address book entry. If I am not careful, my message gets sent to the old address. Nothing seems to work in correcting the problem. Any help will be greatly appreciated. John