diff --git a/browser/base/content/test/popups/browser_popup_blocker_identity_block.js b/browser/base/content/test/popups/browser_popup_blocker_identity_block.js
index d3a529a62543..b640501255e2 100644
--- a/browser/base/content/test/popups/browser_popup_blocker_identity_block.js
+++ b/browser/base/content/test/popups/browser_popup_blocker_identity_block.js
@@ -162,9 +162,9 @@ add_task(async function check_permission_state_change() {
   // Open identity popup and change permission state to allow.
   await openPermissionPopup();
   let menulist = document.getElementById("permission-popup-menulist");
-  menulist.menupopup.openPopup(); // Open the allow/block menu
+  // Open the allow/block menu and click the item.
   let menuitem = menulist.getElementsByTagName("menuitem")[0];
-  menuitem.click();
+  await BrowserTestUtils.selectMenulistItem(menuitem);
   await closePermissionPopup();
 
   state = SitePermissions.getForPrincipal(PRINCIPAL, "popup", gBrowser).state;
@@ -201,9 +201,9 @@ add_task(async function check_permission_state_change() {
   // Open identity popup and change permission state to block.
   await openPermissionPopup();
   menulist = document.getElementById("permission-popup-menulist");
-  menulist.menupopup.openPopup(); // Open the allow/block menu
+  // Open the allow/block menu and click the item.
   menuitem = menulist.getElementsByTagName("menuitem")[1];
-  menuitem.click();
+  await BrowserTestUtils.selectMenulistItem(menuitem);
   await closePermissionPopup();
 
   // Clicking on the "Block" menuitem should remove the permission object(same behavior as UNKNOWN state).