diff --git a/test/ui/src/test/java/io/v/webdriver/VanadiumUITestBase.java b/test/ui/src/test/java/io/v/webdriver/VanadiumUITestBase.java
index 909a6d9..bd3a5dc 100644
--- a/test/ui/src/test/java/io/v/webdriver/VanadiumUITestBase.java
+++ b/test/ui/src/test/java/io/v/webdriver/VanadiumUITestBase.java
@@ -207,6 +207,7 @@
     hasExtension = true;
 
     // Check Vanadium extension option page.
+    Util.sleep(4000);
     ExtensionOptionPage extensionOptionPage = new ExtensionOptionPage(driver, reportData);
     extensionOptionPage.go();
   }