Guenter Gersdorf

Addressbooks Synchronizer is a Thunderbird add-on that syncs chosen addressbooks, helping users manage contacts across multiple devices efficiently.

Copy Sent to Current is a software extension that enables users to duplicate their sent messages and store them in the active folder quickly. It simplifies and streamlines email management.

Thunderbird add-on enables syncing of preferred Addressbooks.

This Thunderbird add-on lets you store a duplicate of sent emails in a designated folder.

The SeaMonkey extension enables you to save copies of your sent emails in either the active folder or any preferred folder, making it easy to locate and manage past correspondences.