Address book format used by Thunderbird and SeaMonkey, as well as the older Netscape and Mozilla mail programs; contains contact information, such as names, email addresses, and phone numbers; used for managing personal and business contacts.

Some example MAB files include the following: abook.mab: personal address book history.mab: collected addresses impab.mab: imported address book NOTE: MAB files can be imported in OpenOffice.org and LibreOffice by choosing File → Wizards → Address Data Source from the application menu and then selecting a MAB file.