What is the procedure to install BirdieSync ?
Before installing BirdieSync and synchronizing, please check that you have a recent backup of your data. You'll find more information on how to backup your data here. To install BirdieSync: - Download the Setup file from BirdieSync web site. - Close Thunderbird and Sunbird - Launch BirdieSync installer then read and strictly follow all the recommendations (especially at the end of the installation)