Thunderbird has the option to import your address book or contacts from other email programs. On the Menu Bar click on Tools then on Import:
Select Address Books then click on Next
Thunderbird can import directly from Outlook or Outlook Express. If you are using Windows Live Mail, then you should first EXPORT your address book as .CSV then select Text File as shown above.
If you want to Import from another Thunderbird account, then first Export the address book as LDIF from that account.
- This page last updated on 3 Sep 2017