diff --git a/mobile/android/geckoview_example/src/main/java/org/mozilla/geckoview_example/GeckoViewActivity.java b/mobile/android/geckoview_example/src/main/java/org/mozilla/geckoview_example/GeckoViewActivity.java
index 58bdc6fb6f88..2c9f85202aa2 100644
--- a/mobile/android/geckoview_example/src/main/java/org/mozilla/geckoview_example/GeckoViewActivity.java
+++ b/mobile/android/geckoview_example/src/main/java/org/mozilla/geckoview_example/GeckoViewActivity.java
@@ -284,6 +284,7 @@ class WebExtensionManager implements WebExtension.ActionDelegate,
                                TabSessionManager tabManager) {
         mTabManager = tabManager;
         mRuntime = runtime;
+        refreshExtensionList();
     }
 }