IT/Software/Applications/Thunderbird

AddressBook Synchronization

1. The address books are stored in an old format called a markaby script.
   1. Old does not mean bad. Though in my personal case there is some statistical evidence to say it does.
2. When you first start you will find an addressbook called All Addressbooks and inside of that Personal and Collected.
   1. abook.mab is the default created 'Personal Address Book'
   2. history.mab is default created 'Collected Addresses'
   3. other.mab files are ones you created.
      1. they will appear as imap1.mab and so on.
   4. Thanks

Image below shows location of .mab files. abook.mab is the default created 'Personal Address Book' history.mab is default created 'Collected Addresses' other *.mab files are ones you created.