I want to import an old Thunderbird addressbook to augment my current addressbook. When I replaced my crashed computer, I wasn't able to migrate my old profile. Now that I have time, I don't want to replace my current profile, I just want to grab the addresses from my old profile and add them to my new profile, not replace them. The Import Tool looks for Eudora and other mail application adddressbooks, but not for an older Thunderbird addressbook.