diff --git a/src/vmdtab.cpp b/src/vmdtab.cpp
index 0f00fde5..fdc5d34f 100644
--- a/src/vmdtab.cpp
+++ b/src/vmdtab.cpp
@@ -1408,6 +1408,7 @@ void VMdTab::setCurrentMode(Mode p_mode)
             m_editor->hide();
         }
 
+        m_webViewer->setInPreview(false);
         m_webViewer->show();
 
         // Fix the bug introduced by 051088be31dbffa3c04e2d382af15beec40d5fdb
@@ -1434,6 +1435,7 @@ void VMdTab::setCurrentMode(Mode p_mode)
 
     case Mode::EditPreview:
         Q_ASSERT(m_editor);
+        m_webViewer->setInPreview(true);
         m_webViewer->show();
         m_editor->show();
 
diff --git a/src/vwebview.cpp b/src/vwebview.cpp
index 2fca84cb..29da582d 100644
--- a/src/vwebview.cpp
+++ b/src/vwebview.cpp
@@ -30,7 +30,8 @@ VWebView::VWebView(VFile *p_file, QWidget *p_parent)
     : QWebEngineView(p_parent),
       m_file(p_file),
       m_copyImageUrlActionHooked(false),
-      m_afterCopyImage(false)
+      m_afterCopyImage(false),
+      m_inPreview(false)
 {
     setAcceptDrops(false);
 
@@ -40,6 +41,11 @@ VWebView::VWebView(VFile *p_file, QWidget *p_parent)
 
 void VWebView::contextMenuEvent(QContextMenuEvent *p_event)
 {
+    if (m_inPreview) {
+        QWebEngineView(p_event);
+        return;
+    }
+
     QMenu *menu = page()->createStandardContextMenu();
     menu->setToolTipsVisible(true);
 
@@ -108,6 +114,8 @@ void VWebView::contextMenuEvent(QContextMenuEvent *p_event)
 
     hideUnusedActions(menu);
 
+    p_event->accept();
+
     menu->exec(p_event->globalPos());
     delete menu;
 }
@@ -400,4 +408,3 @@ void VWebView::handleCopyAllAsAction(QAction *p_act)
 
     triggerPageAction(QWebEnginePage::Unselect);
 }
-
diff --git a/src/vwebview.h b/src/vwebview.h
index e6388a65..039a7887 100644
--- a/src/vwebview.h
+++ b/src/vwebview.h
@@ -15,6 +15,8 @@ public:
     // @p_file could be NULL.
     explicit VWebView(VFile *p_file, QWidget *p_parent = Q_NULLPTR);
 
+    void setInPreview(bool p_preview);
+
 signals:
     void editNote();
 
@@ -64,6 +66,13 @@ private:
 
     // Target of Copy As.
     QString m_copyTarget;
+
+    // Whether in preview mode.
+    bool m_inPreview;
 };
 
+inline void VWebView::setInPreview(bool p_preview)
+{
+    m_inPreview = p_preview;
+}
 #endif // VWEBVIEW_H