Minimize to system tray (Thunderbird)
From MozillaZine Knowledge Base
Thunderbird cannot minimize itself to the system tray. However, users of Microsoft Windows can try using one of these solutions:
- MinimizeToTray: an extension for Thunderbird, Firefox, and Sunbird.
- Thunderbird-Tray.
- One of the general minimize-to-tray utilities mentioned in this MozillaZine Forums thread or below.
If you use GNOME, KDE, or XFCE, you can use kdocker.
External links for general minimize-to-tray utilities
With the following utilities you can minimize not only Thunderbird, but any program to the system tray.