--- a/gfx/thebes/gfxPrefs.h
+++ b/gfx/thebes/gfxPrefs.h
@@ -345,17 +345,17 @@ private:
   DECL_GFX_PREF(Live, "browser.viewport.desktopWidth",         DesktopViewportWidth, int32_t, 980);
 
   DECL_GFX_PREF(Live, "dom.ipc.plugins.asyncdrawing.enabled",  PluginAsyncDrawingEnabled, bool, false);
   DECL_GFX_PREF(Live, "dom.meta-viewport.enabled",             MetaViewportEnabled, bool, false);
   DECL_GFX_PREF(Once, "dom.vr.enabled",                        VREnabled, bool, false);
   DECL_GFX_PREF(Once, "dom.vr.oculus.enabled",                 VROculusEnabled, bool, true);
   DECL_GFX_PREF(Once, "dom.vr.openvr.enabled",                 VROpenVREnabled, bool, false);
   DECL_GFX_PREF(Once, "dom.vr.osvr.enabled",                   VROSVREnabled, bool, false);
-  DECL_GFX_PREF(Live, "dom.vr.poseprediction.enabled",         VRPosePredictionEnabled, bool, false);
+  DECL_GFX_PREF(Live, "dom.vr.poseprediction.enabled",         VRPosePredictionEnabled, bool, true);
   DECL_GFX_PREF(Live, "dom.vr.require-gesture",                VRRequireGesture, bool, true);
   DECL_GFX_PREF(Live, "dom.vr.puppet.enabled",                 VRPuppetEnabled, bool, false);
   DECL_GFX_PREF(Live, "dom.w3c_pointer_events.enabled",        PointerEventsEnabled, bool, false);
   DECL_GFX_PREF(Live, "dom.w3c_touch_events.enabled",          TouchEventsEnabled, int32_t, 0);
 
   DECL_GFX_PREF(Live, "general.smoothScroll",                  SmoothScrollEnabled, bool, true);
   DECL_GFX_PREF(Live, "general.smoothScroll.currentVelocityWeighting",
                 SmoothScrollCurrentVelocityWeighting, float, 0.25);

--- a/gfx/vr/gfxVROculus.cpp
+++ b/gfx/vr/gfxVROculus.cpp
@@ -475,17 +475,17 @@ VRDisplayOculus::GetSensorState()
 {
   mInputFrameID++;
 
   VRHMDSensorState result;
   double frameDelta = 0.0f;
   if (gfxPrefs::VRPosePredictionEnabled()) {
     // XXX We might need to call ovr_GetPredictedDisplayTime even if we don't use the result.
     // If we don't call it, the Oculus driver will spew out many warnings...
-    double predictedFrameTime = ovr_GetPredictedDisplayTime(mSession, mInputFrameID);
+    double predictedFrameTime = ovr_GetPredictedDisplayTime(mSession, 0);
     frameDelta = predictedFrameTime - ovr_GetTimeInSeconds();
   }
   result = GetSensorState(frameDelta);
   result.inputFrameID = mInputFrameID;
   mLastSensorState[result.inputFrameID % kMaxLatencyFrames] = result;
   result.position[1] -= mEyeHeight;
   return result;
 }

--- a/modules/libpref/init/all.js
+++ b/modules/libpref/init/all.js
@@ -5063,19 +5063,18 @@ pref("dom.vr.enabled", true);
 #endif
 pref("dom.vr.oculus.enabled", true);
 // OSVR device
 pref("dom.vr.osvr.enabled", false);
 // OpenVR device
 pref("dom.vr.openvr.enabled", false);
 // Pose prediction reduces latency effects by returning future predicted HMD
 // poses to callers of the WebVR API.  This currently only has an effect for
-// Oculus Rift on SDK 0.8 or greater.  It is disabled by default for now due to
-// frame uniformity issues with e10s.
-pref("dom.vr.poseprediction.enabled", false);
+// Oculus Rift on SDK 0.8 or greater.
+pref("dom.vr.poseprediction.enabled", true);
 // Starting VR presentation is only allowed within a user gesture or event such
 // as VRDisplayActivate triggered by the system.  dom.vr.require-gesture allows
 // this requirement to be disabled for special cases such as during automated
 // tests or in a headless kiosk system.
 pref("dom.vr.require-gesture", true);
 // path to openvr DLL
 pref("gfx.vr.openvr-runtime", "");
 // path to OSVR DLLs