diff --git a/core/misc/ajax.js b/core/misc/ajax.js
index b63bc03..8345690 100644
--- a/core/misc/ajax.js
+++ b/core/misc/ajax.js
@@ -556,6 +556,11 @@
       return;
     }
 
+    // Prevent submit event on right button click
+    if (event.type === 'mousedown' && event.which !== 1) {
+      return;
+    }
+
     try {
       if (ajax.$form) {
         // If setClick is set, we must set this to ensure that the button's