--- a/dom/animation/test/mochitest.ini
+++ b/dom/animation/test/mochitest.ini
@@ -96,17 +96,16 @@ support-files =
 [css-transitions/test_event-dispatch.html]
 [css-transitions/test_keyframeeffect-getkeyframes.html]
 [css-transitions/test_pseudoElement-get-animations.html]
 [css-transitions/test_setting-effect.html]
 [document-timeline/test_document-timeline.html]
 [document-timeline/test_request_animation_frame.html]
 [mozilla/test_cubic_bezier_limits.html]
 [mozilla/test_deferred_start.html]
-skip-if = true # Bug 1361234 (mostly fails)
 [mozilla/test_disable_animations_api_core.html]
 [mozilla/test_disabled_properties.html]
 [mozilla/test_discrete-animations.html]
 [mozilla/test_document-timeline-origin-time-range.html]
 [mozilla/test_hide_and_show.html]
 [mozilla/test_set-easing.html]
 [mozilla/test_spacing_property_order.html]
 [mozilla/test_transform_limits.html]

--- a/gfx/layers/Layers.cpp
+++ b/gfx/layers/Layers.cpp
@@ -288,17 +288,17 @@ Layer::StartPendingAnimations(const Time
       {
         bool updated = false;
         for (size_t animIdx = 0, animEnd = layer->mAnimations.Length();
              animIdx < animEnd; animIdx++) {
           Animation& anim = layer->mAnimations[animIdx];
 
           // If the animation is play-pending, resolve the start time.
           if (anim.startTime().IsNull() && !anim.isNotPlaying()) {
-            anim.startTime() = aReadyTime - anim.holdTime() + anim.delay();
+            anim.startTime() = aReadyTime - anim.holdTime();
             updated = true;
           }
         }
         if (updated) {
           layer->Mutated();
         }
       });
 }