diff --git a/src/plugins/platforms/cocoa/qcocoaintegration.h b/src/plugins/platforms/cocoa/qcocoaintegration.h
index caf47e38d3..ffd1bc5b6e 100644
--- a/src/plugins/platforms/cocoa/qcocoaintegration.h
+++ b/src/plugins/platforms/cocoa/qcocoaintegration.h
@@ -134,8 +134,6 @@ public:
     void beep() const override;
     void quit() const override;
 
-    void closePopups(QWindow *forWindow = nullptr);
-
 private Q_SLOTS:
     void focusWindowChanged(QWindow *);
 
diff --git a/src/plugins/platforms/cocoa/qcocoaintegration.mm b/src/plugins/platforms/cocoa/qcocoaintegration.mm
index 9f225d71c0..e936a7c121 100644
--- a/src/plugins/platforms/cocoa/qcocoaintegration.mm
+++ b/src/plugins/platforms/cocoa/qcocoaintegration.mm
@@ -496,19 +496,6 @@ void QCocoaIntegration::quit() const
     [NSApp terminate:nil];
 }
 
-void QCocoaIntegration::closePopups(QWindow *forWindow)
-{
-    for (auto it = m_popupWindowStack.begin(); it != m_popupWindowStack.end();) {
-        auto *popup = *it;
-        if (!forWindow || popup->window()->transientParent() == forWindow) {
-            it = m_popupWindowStack.erase(it);
-            QWindowSystemInterface::handleCloseEvent<QWindowSystemInterface::SynchronousDelivery>(popup->window());
-        } else {
-            ++it;
-        }
-    }
-}
-
 void QCocoaIntegration::focusWindowChanged(QWindow *focusWindow)
 {
     // Don't revert icon just because we lost focus
diff --git a/src/plugins/platforms/cocoa/qcocoawindow.h b/src/plugins/platforms/cocoa/qcocoawindow.h
index 9a2fa5f025..419f07b779 100644
--- a/src/plugins/platforms/cocoa/qcocoawindow.h
+++ b/src/plugins/platforms/cocoa/qcocoawindow.h
@@ -153,13 +153,11 @@ public:
     Q_NOTIFICATION_HANDLER(NSViewFrameDidChangeNotification) void viewDidChangeFrame();
     Q_NOTIFICATION_HANDLER(NSViewGlobalFrameDidChangeNotification) void viewDidChangeGlobalFrame();
 
-    Q_NOTIFICATION_HANDLER(NSWindowWillMoveNotification) void windowWillMove();
     Q_NOTIFICATION_HANDLER(NSWindowDidMoveNotification) void windowDidMove();
     Q_NOTIFICATION_HANDLER(NSWindowDidResizeNotification) void windowDidResize();
     Q_NOTIFICATION_HANDLER(NSWindowDidEndLiveResizeNotification) void windowDidEndLiveResize();
     Q_NOTIFICATION_HANDLER(NSWindowDidBecomeKeyNotification) void windowDidBecomeKey();
     Q_NOTIFICATION_HANDLER(NSWindowDidResignKeyNotification) void windowDidResignKey();
-    Q_NOTIFICATION_HANDLER(NSWindowWillMiniaturizeNotification) void windowWillMiniaturize();
     Q_NOTIFICATION_HANDLER(NSWindowDidMiniaturizeNotification) void windowDidMiniaturize();
     Q_NOTIFICATION_HANDLER(NSWindowDidDeminiaturizeNotification) void windowDidDeminiaturize();
     Q_NOTIFICATION_HANDLER(NSWindowWillEnterFullScreenNotification) void windowWillEnterFullScreen();
@@ -170,7 +168,6 @@ public:
     Q_NOTIFICATION_HANDLER(NSWindowDidOrderOffScreenNotification) void windowDidOrderOffScreen();
     Q_NOTIFICATION_HANDLER(NSWindowDidChangeOcclusionStateNotification) void windowDidChangeOcclusionState();
     Q_NOTIFICATION_HANDLER(NSWindowDidChangeScreenNotification) void windowDidChangeScreen();
-    Q_NOTIFICATION_HANDLER(NSWindowWillCloseNotification) void windowWillClose();
 
     bool windowShouldClose();
     bool windowIsPopupType(Qt::WindowType type = Qt::Widget) const;
diff --git a/src/plugins/platforms/cocoa/qcocoawindow.mm b/src/plugins/platforms/cocoa/qcocoawindow.mm
index 242d442a19..6a826b4d66 100644
--- a/src/plugins/platforms/cocoa/qcocoawindow.mm
+++ b/src/plugins/platforms/cocoa/qcocoawindow.mm
@@ -834,11 +834,6 @@ void QCocoaWindow::windowDidExitFullScreen()
     }
 }
 
-void QCocoaWindow::windowWillMiniaturize()
-{
-    QCocoaIntegration::instance()->closePopups(window());
-}
-
 void QCocoaWindow::windowDidMiniaturize()
 {
     if (!isContentView())
@@ -1159,12 +1154,6 @@ void QCocoaWindow::viewDidChangeGlobalFrame()
 // callback should make sure to filter out notifications if they do not
 // apply to that QCocoaWindow, e.g. if the window is not a content view.
 
-void QCocoaWindow::windowWillMove()
-{
-    // Close any open popups on window move
-    QCocoaIntegration::instance()->closePopups();
-}
-
 void QCocoaWindow::windowDidMove()
 {
     if (!isContentView())
@@ -1305,13 +1294,6 @@ void QCocoaWindow::windowDidChangeScreen()
     }
 }
 
-void QCocoaWindow::windowWillClose()
-{
-    // Close any open popups on window closing.
-    if (window() && !windowIsPopupType(window()->type()))
-        QCocoaIntegration::instance()->closePopups();
-}
-
 // ----------------------- NSWindowDelegate callbacks -----------------------
 
 bool QCocoaWindow::windowShouldClose()