diff --git a/ext/fg/js/popup-proxy.js b/ext/fg/js/popup-proxy.js
index 0471705f..d52cc26d 100644
--- a/ext/fg/js/popup-proxy.js
+++ b/ext/fg/js/popup-proxy.js
@@ -34,10 +34,6 @@ class PopupProxy {
         return null;
     }
 
-    get child() {
-        return null;
-    }
-
     get depth() {
         return this._depth;
     }
diff --git a/ext/fg/js/popup.js b/ext/fg/js/popup.js
index bdc63b7f..af380ff8 100644
--- a/ext/fg/js/popup.js
+++ b/ext/fg/js/popup.js
@@ -50,10 +50,6 @@ class Popup {
         return this._parent;
     }
 
-    get child() {
-        return this._child;
-    }
-
     get depth() {
         return this._depth;
     }