--- a/testing/web-platform/meta/presentation-api/controlling-ua/PresentationRequest_success.html.ini
+++ b/testing/web-platform/meta/presentation-api/controlling-ua/PresentationRequest_success.html.ini
@@ -1,14 +1,6 @@
 [PresentationRequest_success.html]
   type: testharness
-  [Call PresentationRequest() constructor with valid presentation URL. No Exception expected.]
-    expected: FAIL
-
-  [Call PresentationRequest constructor with a valid relative presentation URL. No Exception expected.]
-    expected: FAIL
-
-  [Call PresentationRequest constructor with a valid absolute presentation URL. No Exception expected.]
-    expected: FAIL
-
-  [Call PresentationRequest constructor with a set of valid presentation URLs. No Exception expected.]
-    expected: FAIL
-
+  prefs: [dom.presentation.enabled: true,
+          dom.presentation.controller.enabled: true,
+          dom.presentation.discovery.enabled: true,
+          dom.presentation.device.name: "Firefox"]