diff --git a/content/media/fmp4/MP4Reader.cpp b/content/media/fmp4/MP4Reader.cpp
index ab8ccc0d688..7b5d036384c 100644
--- a/content/media/fmp4/MP4Reader.cpp
+++ b/content/media/fmp4/MP4Reader.cpp
@@ -145,7 +145,7 @@ MP4Reader::InitLayersBackendType()
     nsContentUtils::LayerManagerForDocument(element->OwnerDoc());
   NS_ENSURE_TRUE_VOID(layerManager);
 
-  mLayersBackendType = layerManager->GetBackendType();
+  mLayersBackendType = layerManager->GetCompositorBackendType();
 }
 
 nsresult
diff --git a/content/media/fmp4/wmf/WMFVideoOutputSource.cpp b/content/media/fmp4/wmf/WMFVideoOutputSource.cpp
index f4397536614..b2e39ba9287 100644
--- a/content/media/fmp4/wmf/WMFVideoOutputSource.cpp
+++ b/content/media/fmp4/wmf/WMFVideoOutputSource.cpp
@@ -69,7 +69,8 @@ WMFVideoOutputSource::InitializeDXVA()
   // to a halt, and makes playback performance *worse*.
   if (!mDXVAEnabled ||
       (mLayersBackend != LayersBackend::LAYERS_D3D9 &&
-       mLayersBackend != LayersBackend::LAYERS_D3D10)) {
+       mLayersBackend != LayersBackend::LAYERS_D3D10 &&
+       mLayersBackend != LayersBackend::LAYERS_D3D11)) {
     return false;
   }
 
diff --git a/content/media/wmf/WMFReader.cpp b/content/media/wmf/WMFReader.cpp
index 59fb69b9c63..b9e5dead12e 100644
--- a/content/media/wmf/WMFReader.cpp
+++ b/content/media/wmf/WMFReader.cpp
@@ -103,8 +103,10 @@ WMFReader::InitializeDXVA()
     nsContentUtils::LayerManagerForDocument(element->OwnerDoc());
   NS_ENSURE_TRUE(layerManager, false);
 
-  if (layerManager->GetBackendType() != LayersBackend::LAYERS_D3D9 &&
-      layerManager->GetBackendType() != LayersBackend::LAYERS_D3D10) {
+  LayersBackend backend = layerManager->GetCompositorBackendType();
+  if (backend != LayersBackend::LAYERS_D3D9 &&
+      backend != LayersBackend::LAYERS_D3D10 &&
+      backend != LayersBackend::LAYERS_D3D11) {
     return false;
   }