diff --git a/lcl/interfaces/cocoa/cocoaconfig.pas b/lcl/interfaces/cocoa/cocoaconfig.pas
index 34ca3da5c9..dfbada06ea 100644
--- a/lcl/interfaces/cocoa/cocoaconfig.pas
+++ b/lcl/interfaces/cocoa/cocoaconfig.pas
@@ -86,6 +86,12 @@ var
   CocoaScrollerOverlayStyleKnobMinSize : Double = 25;
 
 
+  // by default on macOS, Notification is only Presented when the APP is
+  // in the background.
+  // when CocoaAlwaysPresentNotification is set to True, Notification is
+  // always Presented.
+  CocoaAlwaysPresentNotification : Boolean = True;
+
   // for compatiblity with LCL 1.8 release. The macOS base is 72ppi
   CocoaBasePPI : Integer = 96;
 
diff --git a/lcl/interfaces/cocoa/cocoatrayicon.inc b/lcl/interfaces/cocoa/cocoatrayicon.inc
index 97967d2675..1af900bf7c 100644
--- a/lcl/interfaces/cocoa/cocoatrayicon.inc
+++ b/lcl/interfaces/cocoa/cocoatrayicon.inc
@@ -15,6 +15,12 @@ type
     procedure menuWillOpen(menu: NSMenu); message 'menuWillOpen:';
   end;
 
+  { TCocoaUserNotificationCenterDelegate }
+
+  TCocoaUserNotificationCenterDelegate = objcclass(NSObject, NSUserNotificationCenterDelegateProtocol)
+    function userNotificationCenter_shouldPresentNotification (center: NSUserNotificationCenter; notification: NSUserNotification): ObjCBOOL; message 'userNotificationCenter:shouldPresentNotification:';
+  end;
+
 { TCocoaStatusItemHandle }
 
 procedure TCocoaStatusItemHandle.lclAction(sender: id);
@@ -34,7 +40,10 @@ begin
   if (ATrayIcon.icon <> nil) and (ATrayIcon.icon.Handle <> 0) then
   begin
     image := TCocoaBitmap(ATrayIcon.icon.Handle).image;
-    if image <> nil then statusitem.setImage(image);
+    if image <> nil then begin
+      statusItem.button.setImageScaling(NSImageScaleProportionallyUpOrDown);
+      statusItem.button.setImage(image);
+    end;
   end;
 
   // Show the menu
@@ -61,6 +70,13 @@ begin
     menu.cancelTrackingWithoutAnimation;
 end;
 
+function TCocoaUserNotificationCenterDelegate.userNotificationCenter_shouldPresentNotification
+  (center: NSUserNotificationCenter; notification: NSUserNotification
+  ): ObjCBOOL;
+begin
+  Result:= True;
+end;
+
 { TCocoaWSCustomTrayIcon }
 
 class function TCocoaWSCustomTrayIcon.Hide(const ATrayIcon: TCustomTrayIcon): Boolean;
@@ -139,8 +155,23 @@ begin
 end;
 
 class function TCocoaWSCustomTrayIcon.ShowBalloonHint(const ATrayIcon: TCustomTrayIcon): Boolean;
+var
+  nc: NSUserNotificationCenter;
+  message: NSUserNotification;
 begin
-  Result := False;
+  Result := True;
+  message:= NSUserNotification.alloc.init;
+  message.setTitle( StrToNSString(ATrayIcon.BalloonTitle) );
+  message.setInformativeText( StrToNSString(ATrayIcon.BalloonHint) );
+
+  nc:= NSUserNotificationCenter.defaultUserNotificationCenter;
+  if CocoaConfig.CocoaAlwaysPresentNotification then begin
+    if NOT Assigned(nc.delegate) then
+      nc.setDelegate( TCocoaUserNotificationCenterDelegate.new );
+  end;
+  nc.deliverNotification( message );
+
+  message.release;
 end;
 
 class function TCocoaWSCustomTrayIcon.GetPosition(const ATrayIcon: TCustomTrayIcon): TPoint;
diff --git a/lcl/interfaces/cocoa/cocoawsextctrls.pas b/lcl/interfaces/cocoa/cocoawsextctrls.pas
index f99ef26df3..a6a3b085c0 100644
--- a/lcl/interfaces/cocoa/cocoawsextctrls.pas
+++ b/lcl/interfaces/cocoa/cocoawsextctrls.pas
@@ -31,7 +31,7 @@ uses
   WSExtCtrls, WSLCLClasses,
   // LCL Cocoa
   CocoaPrivate, CocoaMenus, CocoaWSCommon, CocoaGDIObjects, CocoaScrollers,
-  Cocoa_Extra;
+  Cocoa_Extra, CocoaUtils, CocoaConfig;
 
 type