--- a/dom/html/HTMLMediaElement.cpp
+++ b/dom/html/HTMLMediaElement.cpp
@@ -3076,28 +3076,29 @@ HTMLMediaElement::ReportTelemetry()
       state = STALLED;
     }
   }
 
   Telemetry::Accumulate(Telemetry::VIDEO_UNLOAD_STATE, state);
   LOG(LogLevel::Debug, ("%p VIDEO_UNLOAD_STATE = %d", this, state));
 
   if (HTMLVideoElement* vid = HTMLVideoElement::FromContentOrNull(this)) {
-    RefPtr<VideoPlaybackQuality> quality = vid->GetVideoPlaybackQuality();
-    uint32_t totalFrames = quality->TotalVideoFrames();
-    if (totalFrames) {
-      uint32_t droppedFrames = quality->DroppedVideoFrames();
-      MOZ_ASSERT(droppedFrames <= totalFrames);
-      // Dropped frames <= total frames, so 'percentage' cannot be higher than
-      // 100 and therefore can fit in a uint32_t (that Telemetry takes).
-      uint32_t percentage = 100 * droppedFrames / totalFrames;
-      LOG(LogLevel::Debug,
-          ("Reporting telemetry DROPPED_FRAMES_IN_VIDEO_PLAYBACK"));
-      Telemetry::Accumulate(Telemetry::VIDEO_DROPPED_FRAMES_PROPORTION,
-                            percentage);
+    FrameStatistics* stats = vid->GetFrameStatistics();
+    if (stats) {
+      FrameStatisticsData data = stats->GetFrameStatisticsData();
+      if (data.mParsedFrames) {
+        MOZ_ASSERT(data.mDroppedFrames <= data.mParsedFrames);
+        // Dropped frames <= total frames, so 'percentage' cannot be higher than
+        // 100 and therefore can fit in a uint32_t (that Telemetry takes).
+        uint32_t percentage = 100 * data.mDroppedFrames / data.mParsedFrames;
+        LOG(LogLevel::Debug,
+            ("Reporting telemetry DROPPED_FRAMES_IN_VIDEO_PLAYBACK"));
+        Telemetry::Accumulate(Telemetry::VIDEO_DROPPED_FRAMES_PROPORTION,
+                              percentage);
+      }
     }
   }
 
   if (mMediaInfo.HasVideo() &&
       mMediaInfo.mVideo.mImage.height > 0) {
     // We have a valid video.
     double playTime = mPlayTime.Total();
     double hiddenPlayTime = mHiddenPlayTime.Total();

--- a/dom/html/HTMLVideoElement.cpp
+++ b/dom/html/HTMLVideoElement.cpp
@@ -223,16 +223,22 @@ HTMLVideoElement::WrapNode(JSContext* aC
 bool
 HTMLVideoElement::NotifyOwnerDocumentActivityChangedInternal()
 {
   bool pauseElement = HTMLMediaElement::NotifyOwnerDocumentActivityChangedInternal();
   UpdateScreenWakeLock();
   return pauseElement;
 }
 
+FrameStatistics*
+HTMLVideoElement::GetFrameStatistics()
+{
+  return mDecoder ? &(mDecoder->GetFrameStatistics()) : nullptr;
+}
+
 already_AddRefed<VideoPlaybackQuality>
 HTMLVideoElement::GetVideoPlaybackQuality()
 {
   DOMHighResTimeStamp creationTime = 0;
   uint32_t totalFrames = 0;
   uint32_t droppedFrames = 0;
   uint32_t corruptedFrames = 0;
 

--- a/dom/html/HTMLVideoElement.h
+++ b/dom/html/HTMLVideoElement.h
@@ -125,16 +125,19 @@ public:
   bool MozHasAudio() const;
 
   bool MozUseScreenWakeLock() const;
 
   void SetMozUseScreenWakeLock(bool aValue);
 
   bool NotifyOwnerDocumentActivityChangedInternal() override;
 
+  // Gives access to the decoder's frame statistics, if present.
+  FrameStatistics* GetFrameStatistics();
+
   already_AddRefed<VideoPlaybackQuality> GetVideoPlaybackQuality();
 
 protected:
   virtual ~HTMLVideoElement();
 
   virtual JSObject* WrapNode(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
 
   virtual void WakeLockCreate() override;