How to import contacts from a vCard file (
*vcf) into Thunderbird mail client?
- Click on Tools in the top bar and then open the Import menu
As type of material choice "Address Book" and click Next
As type of file choice "vCard file (*.vcf)" and click Next
Now search your file with the new window and open it.
If everything finished correctly, you will get a success message like this one and when you open the address book you will see your imported contacts there.