diff --git a/b2g/graphene/graphene.js b/b2g/graphene/graphene.js
index 45d8e62ab0e..3a00ea04b52 100644
--- a/b2g/graphene/graphene.js
+++ b/b2g/graphene/graphene.js
@@ -30,9 +30,6 @@ pref("network.predictor.enabled", true);
 // No AccessibleCaret
 pref("layout.accessiblecaret.enabled", false);
 
-pref("gfx.vsync.hw-vsync.enabled", true);
-pref("gfx.vsync.compositor", true);
-
 // To be removed once bug 942756 is fixed.
 pref("devtools.debugger.unix-domain-socket", "6000");
 
diff --git a/gfx/layers/apz/test/mochitest/test_smoothness.html b/gfx/layers/apz/test/mochitest/test_smoothness.html
index ec0bd578509..88373957a77 100644
--- a/gfx/layers/apz/test/mochitest/test_smoothness.html
+++ b/gfx/layers/apz/test/mochitest/test_smoothness.html
@@ -61,12 +61,6 @@
         SimpleTest.finish();
       }
 
-      var hwVsyncEnabled = SpecialPowers.getBoolPref("gfx.vsync.hw-vsync.enabled");
-      if (!hwVsyncEnabled) {
-        SimpleTest.ok(true, "Hardware vsync not enabled, skipping test");
-        SimpleTest.finish();
-      }
-
       SpecialPowers.pushPrefEnv({
         "set" : [
           [testPref, true]