Linux users many not enjoy features and facility like Windows Users but Linux has all types of application and Features with reduced functionality that a windows operating app can offer. Most of all Windows application supports minimize to system tray but incase of Linux you may or may not have minimize to system tray feature.
Here is handy Freeware utility Alltray which lets you to dock any Linux application or say minimize any Linux application to system tray icon irrespective of system tray support. Alltray is useful app for application like Evolution, Thunderbird, and Terminals which you can’t minimize to your system tray .
Screenshot of Alltray in action
Alltray is available for following Linux Flavor
Ubuntu, Susu, Gentoo, Fedora, Debian
It is also available as source code form or binary package.
