diff --git a/app/ui.js b/app/ui.js
index 84e1585a..e5f18d20 100644
--- a/app/ui.js
+++ b/app/ui.js
@@ -166,6 +166,12 @@ const UI = {
             }
         });
 
+        window.addEventListener("beforeunload", (e) => { 
+            if (UI.rfb) { 
+                UI.disconnect(); 
+            } 
+        });
+
         return Promise.resolve(UI.rfb);
     },