I've installed Thunderbird and FireTray addon, then checked to minimize to tray on close. Now, if I start Thunderbird after quitting (Win+Q) and try to close with Alt+f4:
- for the first time it's minimised properly to tray
- on each next time I need to double press "close button", and if the window is not maximised
- firstly it maximizes (first Alt+f4), then closes(second Alt+f4)
Could you help me, please?
Ubuntu 11.10, Unity 2d