In Windows 7, when I double-click the Thunderbird system tray icon to restore the window, the windows maximises. Then, the icons in my system tray re-arrange themselves, and the icon that is now where the Thunderbird icon was also registers a click event, maximising that window also. (Many of my applications have a single-click restore feature).
A fix would possibly be to only register the second click when the mouse is released.
In Windows 7, when I double-click the Thunderbird system tray icon to restore the window, the windows maximises. Then, the icons in my system tray re-arrange themselves, and the icon that is now where the Thunderbird icon was also registers a click event, maximising that window also. (Many of my applications have a single-click restore feature).
A fix would possibly be to only register the second click when the mouse is released.