diff --git a/src/CredentialsManagement.cpp b/src/CredentialsManagement.cpp
index 69243b1f..6915f123 100755
--- a/src/CredentialsManagement.cpp
+++ b/src/CredentialsManagement.cpp
@@ -680,6 +680,14 @@ void CredentialsManagement::saveChanges()
     emit wantSaveMemMode();
 }
 
+void CredentialsManagement::onMainWindowActivated()
+{
+    if (wsClient->get_memMgmtMode() && wsClient->isMPBLE())
+    {
+        onClipboardDataChanged();
+    }
+}
+
 void CredentialsManagement::keyPressEvent(QKeyEvent *event)
 {
     QWidget::keyPressEvent(event);
@@ -1995,6 +2003,17 @@ void CredentialsManagement::onClipboardDataChanged()
     QClipboard *clipboard = QGuiApplication::clipboard();
 
     QImage clipImage = clipboard->image();
+    static QImage lastImage;
+    if (clipImage == lastImage)
+    {
+        // Only process image from clipboard one time.
+        return;
+    }
+    else
+    {
+        lastImage = clipImage;
+    }
+
     if (!clipImage.isNull() && !m_processingQRImage)
     {
         m_processingQRImage = true;
diff --git a/src/CredentialsManagement.h b/src/CredentialsManagement.h
index f17631ea..c6a4ad39 100755
--- a/src/CredentialsManagement.h
+++ b/src/CredentialsManagement.h
@@ -57,6 +57,7 @@ class CredentialsManagement : public QWidget
 public slots:
     bool confirmDiscardUneditedCredentialChanges(const QModelIndex &proxyIndex = {});
     void saveChanges();
+    void onMainWindowActivated();
 
 protected:
     virtual void keyPressEvent(QKeyEvent *event) override;
diff --git a/src/MainWindow.cpp b/src/MainWindow.cpp
index 4d4c9e10..7fdd8496 100755
--- a/src/MainWindow.cpp
+++ b/src/MainWindow.cpp
@@ -250,6 +250,13 @@ MainWindow::MainWindow(WSClient *client, DbMasterController *mc, QWidget *parent
         }
     });
 
+#ifdef Q_OS_MAC
+    // For Mac clipboard changed event is not working when app is in background,
+    // so need to check the clipboard content when window is activated.
+    connect(this, &MainWindow::mainWindowActivated,
+            ui->widgetCredentials, &CredentialsManagement::onMainWindowActivated);
+#endif
+
     ui->pushButtonExportFile->setStyleSheet(CSS_BLUE_BUTTON);
     ui->pushButtonImportFile->setStyleSheet(CSS_BLUE_BUTTON);
     ui->pushButtonSettingsReset->setStyleSheet(CSS_BLUE_BUTTON);
@@ -805,6 +812,13 @@ void MainWindow::changeEvent(QEvent *event)
         ui->retranslateUi(this);
         retranslateUi();
     }
+    if (event->type() == QEvent::ActivationChange)
+    {
+        if (isActiveWindow())
+        {
+            emit mainWindowActivated();
+        }
+    }
     QMainWindow::changeEvent(event);
 }
 
diff --git a/src/MainWindow.h b/src/MainWindow.h
index 06be87dd..61a4e0e9 100755
--- a/src/MainWindow.h
+++ b/src/MainWindow.h
@@ -87,6 +87,7 @@ class MainWindow : public QMainWindow
     void windowCloseRequested();
     void iconChangeRequested();
     void saveMMMChanges();
+    void mainWindowActivated();
 
 public slots:
     void wantImportDatabase();