--- a/layout/painting/nsCSSRendering.cpp
+++ b/layout/painting/nsCSSRendering.cpp
@@ -3255,18 +3255,32 @@ nsCSSRendering::PrepareImageLayer(nsPres
   }
   if (aFlags & nsCSSRendering::PAINTBG_TO_WINDOW) {
     irFlags |= nsImageRenderer::FLAG_PAINTING_TO_WINDOW;
   }
 
   nsBackgroundLayerState state(aForFrame, &aLayer.mImage, irFlags);
   if (!state.mImageRenderer.PrepareImage()) {
     // There's no image or it's not ready to be painted.
-    if (aOutIsTransformedFixed) {
-      *aOutIsTransformedFixed = false;
+    if (aOutIsTransformedFixed &&
+        StyleImageLayerAttachment::Fixed == aLayer.mAttachment) {
+
+      nsIFrame* attachedToFrame = aPresContext->PresShell()->GetRootFrame();
+      NS_ASSERTION(attachedToFrame, "no root frame");
+      nsIFrame* pageContentFrame = nullptr;
+      if (aPresContext->IsPaginated()) {
+        pageContentFrame = nsLayoutUtils::GetClosestFrameOfType(
+          aForFrame, LayoutFrameType::PageContent);
+        if (pageContentFrame) {
+          attachedToFrame = pageContentFrame;
+        }
+        // else this is an embedded shell and its root frame is what we want
+      }
+
+      *aOutIsTransformedFixed = nsLayoutUtils::IsTransformed(aForFrame, attachedToFrame);
     }
     return state;
   }
 
   // The frame to which the background is attached
   nsIFrame* attachedToFrame = aForFrame;
   // Is the background marked 'fixed', but affected by a transform?
   bool transformedFixed = false;