Am I right in assuming that it is not possible to save e-mail addresses to the Mac OS address book? If I click on a senders address there is only the option "save to address book" which will save the address in my Thunderbird address book. So while it is possible to access the Mac address book from Thunderbird and even set it as default for when opening the address book tab it doesn't seem possible to actually save addresses into it. I would prefer having only one address book instead of two. (Thunderbird 115.8)