I fount temporarily solution, which is not fix the source of the problem, yet at least improves the user experience... Hover the mouse over the Nautilus icon in the launcher, and roll the mouse wheel down/up, it should switch to the Naulitus window without open new instance of it.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1170647 Title: After minimizing a Nautilus window of another partition or external media or Trash folder, clicking on the "Files" icon on the Launcher again doesn't restore the minimized window, but opens a new one To manage notifications about this bug go to: https://bugs.launchpad.net/hundredpapercuts/+bug/1170647/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs