diff --git a/src/Plugins/MacOS/mac_utilities.h b/src/Plugins/MacOS/mac_utilities.h
index 538327c264..a3e5f0a65f 100644
--- a/src/Plugins/MacOS/mac_utilities.h
+++ b/src/Plugins/MacOS/mac_utilities.h
@@ -25,4 +25,7 @@ void mac_fix_yosemite_bug();
 void mac_begin_server ();
 void mac_end_server ();
 
+void mac_save_and_clear_menu ();
+void mac_restore_menu ();
+
 #endif // MAC_UTILITIES_H
diff --git a/src/Plugins/MacOS/mac_utilities.mm b/src/Plugins/MacOS/mac_utilities.mm
index 5ede9a254b..68b89a23ce 100644
--- a/src/Plugins/MacOS/mac_utilities.mm
+++ b/src/Plugins/MacOS/mac_utilities.mm
@@ -504,6 +504,23 @@ unless we remove the duplicates and most plugins fail to start (since they are
 }
 
 
+static NSMenu* savedMainMenu= nil;
+
+void
+mac_save_and_clear_menu () {
+  savedMainMenu= [[NSApp mainMenu] retain];
+  [NSApp setMainMenu:nil];
+}
+
+void
+mac_restore_menu () {
+  if (savedMainMenu) {
+    [NSApp setMainMenu:savedMainMenu];
+    [savedMainMenu release];
+    savedMainMenu= nil;
+  }
+}
+
 static id background_activity= nil;
 
 void
diff --git a/src/Plugins/Qt/qt_chooser_widget.cpp b/src/Plugins/Qt/qt_chooser_widget.cpp
index 86b48e9276..fd36c370f0 100644
--- a/src/Plugins/Qt/qt_chooser_widget.cpp
+++ b/src/Plugins/Qt/qt_chooser_widget.cpp
@@ -24,12 +24,17 @@
 #include "mupdf_picture.hpp"
 #endif
 
+#include <QApplication>
 #include <QByteArray>
 #include <QDebug>
 #include <QFileDialog>
 #include <QString>
 #include <QStringList>
 
+#ifdef OS_MACOS
+#include "MacOS/mac_utilities.h"
+#endif
+
 #include <moebius/data/scheme.hpp>
 
 using moebius::data::scm_quote;
@@ -344,6 +349,15 @@ qt_chooser_widget_rep::perform_dialog () {
   r.moveCenter (pos);
   dialog->setGeometry (r);
 
+#ifdef OS_MACOS
+  // On macOS, QAction shortcuts registered in the menu bar become NSMenuItem
+  // key equivalents. When a native file dialog is open, these key equivalents
+  // intercept standard editing shortcuts (Cmd+V, Cmd+C, Cmd+X, Cmd+A) before
+  // the dialog's text field can handle them. Temporarily removing the native
+  // menu allows the dialog to process these keys normally.
+  mac_save_and_clear_menu ();
+#endif
+
   QStringList fileNames;
   file= "#f";
   if (dialog->exec ()) {
@@ -429,6 +443,10 @@ qt_chooser_widget_rep::perform_dialog () {
 
   delete dialog;
 
+#ifdef OS_MACOS
+  mac_restore_menu ();
+#endif
+
   cmd ();
   if (!is_nil (quit)) quit ();
 }