Finally, I’ve been waiting for this kind of extension. Minimize to Tray extension also works with Firefox, Thunderbird, and Mozilla Suite.

Some of the features:

• Tray menus via right mouse click
  MinimizeToTray provides quick access to many of Firefox and Thunderbird’s most used features. For Firefox, easily view your Downloads or open a new browser window. For Thunderbird, compose new messages and view your Address Book while keeping it minimized all day to check for new mail.
• Quick and flexible minimizing options
  MinimizeToTray always allows you to send Firefox or Thunderbird to the tray by right-mouse clicking on the minimize button, or by choosing “File => Minimize to Tray” from the menu, or by pressing Ctrl+Shift+M from the keyboard. Also, you can force the application to always minimize to the tray instead of the taskbar by selecting the checkbox inside the extension’s options.
• Turbo option for Firefox and Thunderbird
  MinimizeToTray implements this popular feature from the Mozilla application suite. Have a Firefox tray icon and menu always available, even if no browser window is open. Or have Thunderbird launch directly into the tray only to notify you if you receive mail.

[ Visit Web Site ] [ Install Minimize to Tray ]