is showing up multiple times in the Dock. It's only open once. How do i stop this?

I have opened an app once, but it shows up two more times in a different middle section between two lines.

enter image description here

Is this an app misbehaviour or an macOS one? I can't tell and I'm not sure where to troubleshoot. This is the only app it happens with.

  • 1
    What app is it?
    – l008com
    Oct 12, 2018 at 22:14
  • 1
    Are you running macOS Mojave?
    – Monomeeth
    Oct 12, 2018 at 23:28
  • What happens when you try to drag the other ones out of the dock?
    – airsquared
    Oct 13, 2018 at 0:14

1 Answer 1


Apps with support for opening documents minimize into Dock in their own separate icon. To disable that behaviour, check Minimise windows into application icon under System Preferences → Dock.

macOS Mojave has a configuration to show recently used app's icon in the Dock (just like in iOS 11 and later). To disable it, uncheck Show recent applications in Dock under System Preferences → Dock.

enter image description here

  • 2
    Thanks, Can't believe i didn't notice this was a thing sooner Oct 15, 2018 at 5:44

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