AllTray is an application which docks other application software into the system tray (“notification area”) of a desktop environment such as GNOME, KDE, or XFCE. It aims to be independent of both desktop environment and window manager.

With AllTray you can dock any application with no native tray icon (like Evolution, Thunderbird, Terminals) into the system tray. A high-light feature is that a click on the “close” button will minimize back to system tray. It works well with GNOME, KDE, Xfce 4*, Fluxbox* and WindowMaker*. (*) No drag ‘n drop support. Enable with “-nm” option.

AllTray by default is available in Ubuntu universe repository. You can install it using Ubuntu Software Center, but it might be old. For latest version, go to: https://launchpad.net/alltray

AllTray may not work in Ubuntu Natty with Unity desktop (Question #154938). There is a way to get AllTray to work properly with Unity. Open a terminal, run the following command, and then logout and back in again; AllTray should then work.

gsettings set com.canonical.Unity.Panel systray-whitelist "['all']"

This will make it possible for you to continue to use AllTray under Unity without having to switch to the Ubuntu Classic mode if you do not want to.