--- a/dom/tests/mochitest/general/test_interfaces.js
+++ b/dom/tests/mochitest/general/test_interfaces.js
@@ -377,19 +377,19 @@ var interfaceNamesInGlobalScope =
     "GamepadAxisMoveEvent",
 // IMPORTANT: Do not change this list without review from a DOM peer!
     "GamepadButtonEvent",
 // IMPORTANT: Do not change this list without review from a DOM peer!
     "GamepadButton",
 // IMPORTANT: Do not change this list without review from a DOM peer!
     "GamepadEvent",
 // IMPORTANT: Do not change this list without review from a DOM peer!
-    {name: "GamepadHapticActuator", release: false},
+    "GamepadHapticActuator",
 // IMPORTANT: Do not change this list without review from a DOM peer!
-    {name: "GamepadPose", release: false},
+    "GamepadPose",
 // IMPORTANT: Do not change this list without review from a DOM peer!
     "HashChangeEvent",
 // IMPORTANT: Do not change this list without review from a DOM peer!
     "Headers",
 // IMPORTANT: Do not change this list without review from a DOM peer!
     "History",
 // IMPORTANT: Do not change this list without review from a DOM peer!
     "HTMLAllCollection",

--- a/modules/libpref/init/all.js
+++ b/modules/libpref/init/all.js
@@ -192,17 +192,17 @@ pref("dom.requestIdleCallback.enabled", 
 // Whether the Gamepad API is enabled
 pref("dom.gamepad.enabled", true);
 pref("dom.gamepad.test.enabled", false);
 #ifdef RELEASE_OR_BETA
 pref("dom.gamepad.non_standard_events.enabled", false);
 #else
 pref("dom.gamepad.non_standard_events.enabled", true);
 #endif
-pref("dom.gamepad.extensions.enabled", false);
+pref("dom.gamepad.extensions.enabled", true);
 
 // If this is true, TextEventDispatcher dispatches keydown and keyup events
 // even during composition (keypress events are never fired during composition
 // even if this is true).
 pref("dom.keyboardevent.dispatch_during_composition", false);
 
 // Whether to run add-on code in different compartments from browser code. This
 // causes a separate compartment for each (addon, global) combination, which may