Are they address books from another Thunderbird copy, or from some other program?
For Thunderbird, you would need to copy the abook.mab and history.mab files from one profile folder to the other. See this page for more info.
Does this help?
Are they address books from another Thunderbird copy, or from some other program?
For Thunderbird, you would need to copy the ''abook.mab'' and ''history.mab'' files from one [[Profiles TB|profile]] folder to the other. See [http://kb.mozillazine.org/Moving_address_books_between_profiles this page] for more info.
Does this help?