The problem is worse in core #21867

1. The same issue still happens sometimes where you restore from tray and JD2 is behind other windows.

2. There is now major bug. To reproduce, minimize JD2 to tray, they copy link address from browser. JD2 window will restore when it should not, JD2 should only switch tab not restore window from tray.

Even worse, if you try to minimize or restore window, JD2 is now always stuck in background. It can only be fixed by closeing JD2 application.