Duplicate Contact Manager is a free and easy to use Thunderbird add-on that facilitates handling of duplicates in your address book(s).
The Duplicate Contact Manager searches for duplicate contact pairs and presents each pair to the user. Duplicate Contact Manager extension allows any user to decide how to handle the pair.
Currently only one address book can be searched at a time. Users with multiple address books cannot search for duplicates between address books. This feature is planned for a future version.
Duplicate Contact Manager is cross-platform and it works on Mac OS X, Windows and Linux.
· Thunderbird 3.0 and later
What's New in This Release: [ read full changelog ]
· Bugfixes and layout improvements.