diff --git a/src/slic3r/GUI/GUI_App.cpp b/src/slic3r/GUI/GUI_App.cpp
index 6d49e22f1f..b645593623 100644
--- a/src/slic3r/GUI/GUI_App.cpp
+++ b/src/slic3r/GUI/GUI_App.cpp
@@ -2889,6 +2889,7 @@ void GUI_App::MacOpenURL(const wxString& url)
 {
     if (app_config && !app_config->get_bool("downloader_url_registered"))
     {
+        notification_manager()->push_notification(NotificationType::URLNotRegistered);
         BOOST_LOG_TRIVIAL(error) << "Recieved command to open URL, but it is not allowed in app configuration. URL: " << url;
         return;
     }
diff --git a/src/slic3r/GUI/NotificationManager.hpp b/src/slic3r/GUI/NotificationManager.hpp
index b3a39a936f..778f99bfa3 100644
--- a/src/slic3r/GUI/NotificationManager.hpp
+++ b/src/slic3r/GUI/NotificationManager.hpp
@@ -120,7 +120,9 @@ enum class NotificationType
 	// Short meesage to fill space between start and finish of export
 	ExportOngoing,
 	// Progressbar of download from prusaslicer:// url
-	URLDownload
+	URLDownload,
+	// MacOS specific - PS comes forward even when downloader is not allowed
+	URLNotRegistered,
 };
 
 class NotificationManager
@@ -916,6 +918,16 @@ private:
 	{NotificationType::UndoDesktopIntegrationFail, NotificationLevel::WarningNotificationLevel, 10,
 		_u8L("Undo desktop integration failed.") },
 	{NotificationType::ExportOngoing, NotificationLevel::RegularNotificationLevel, 0, _u8L("Exporting.") },
+    {NotificationType::URLNotRegistered
+		, NotificationLevel::RegularNotificationLevel
+		, 10
+		, _u8L("PrusaSlicer recieved a download request from Printables.com, but it's not allowed. You can allow it")
+		, _u8L("here.")
+		,  [](wxEvtHandler* evnthndlr) {
+			wxGetApp().open_preferences("downloader_url_registered", "Other");
+			return true; 
+		} },
+
 			//{NotificationType::NewAppAvailable, NotificationLevel::ImportantNotificationLevel, 20,  _u8L("New version is available."),  _u8L("See Releases page."), [](wxEvtHandler* evnthndlr) {
 			//	wxGetApp().open_browser_with_warning_dialog("https://github.com/prusa3d/PrusaSlicer/releases"); return true; }},
 			//{NotificationType::NewAppAvailable, NotificationLevel::ImportantNotificationLevel, 20,  _u8L("New vesion of PrusaSlicer is available.",  _u8L("Download page.") },