diff --git a/window-manipulator/window.html b/window-manipulator/window.html
index c1ba472..f1ebd95 100644
--- a/window-manipulator/window.html
+++ b/window-manipulator/window.html
@@ -18,6 +18,10 @@
 
       <div class="panel-section-separator"></div>
 
+      <a href="#" id="window-preface-title">Preface title</a><br>
+
+      <div class="panel-section-separator"></div>
+
       <a href="#" id="window-create-incognito">Create new incognito window</a><br>
       <a href="#" id="window-create-normal">Create normal window</a><br>
       <a href="#" id="window-create-panel">Create panel</a><br>
diff --git a/window-manipulator/window.js b/window-manipulator/window.js
index a659b48..b7e9396 100644
--- a/window-manipulator/window.js
+++ b/window-manipulator/window.js
@@ -92,5 +92,14 @@ document.addEventListener("click", (e) => {
     });
   }
 
+  else if (e.target.id === "window-preface-title") {
+    getCurrentWindow().then((currentWindow) => {
+      let updateInfo = {
+        titlePreface: "Preface | "
+      }
+      browser.windows.update(currentWindow.id, updateInfo);
+    });
+  }
+
   e.preventDefault();
 });