Thunderbird Migration - Version 4.0 Do you wish to migrate Thunderbird emails then you get the Thunderbird Migration Tool to migrate emails from Thunderbird from EML, MBOX, PST with most independent process. PCVARE offered very nice Thunderbird Migration to migrate Thunderbird into Outlook, Thunderbird, Outlook Express, Windows Live Mail, Windows Mail. For testing the migration process user can download free demo facility to migrate 10 emails from Thunderbird. Get licensed version key for Thunderbird Migration at $99.