One click on the already-active app minimizes its windows. Everything else in the Dock stays exactly as macOS intends.
Download TaskabarKlick auf das blaue Icon — die App ist aktiv, ihr Fenster ist offen.
What it does
If another app is in front, the click brings it forward as usual. Only clicking the already-active app minimizes.
Choose whether the app's entire window set disappears into the Dock or only the frontmost one.
If you prefer speed, hide the app instead — no genie effect, no occupied Dock space.
⌘-, ⌥-, ⌃- and ⇧-click as well as right-click go straight to the Dock, unchanged. The context menu and “Show in Finder” keep working.
Apps with their own window toolkit report their windows without the usual tagging. Taskabar recognizes them via a second path — provided they expose their windows to accessibility at all. If they don't, the click falls back to the macOS default.
About 190 KB, no third-party libraries, practically no processor load when idle. No Dock icon, just a symbol in the menu bar.
Setup
Open the downloaded image and drag Taskabar into the folder.
On first launch, macOS asks for accessibility access. Without this permission, Taskabar can neither observe Dock clicks nor minimize windows.
System Settings → Privacy & Security → Accessibility
If Taskabar doesn't appear there:
Under the hood