Add-ons
Wolkom by Thunderbird Add-ons.
Foegje ekstra funksjes en stilen ta om Thunderbird hielendal fan jo te meitsjen.
Slute
Oer dizze add-on
Simple extension that minimizes Thunderbird's main window on its startup. For better expirience add Thunderbird to computer's startup and turn on "When Thunderbird is minimized, move it to the tray" setting.
