diff --git a/gfx/webrender_bindings/WebRenderAPI.cpp b/gfx/webrender_bindings/WebRenderAPI.cpp
index c3401ce0c9f9..f81fcc0b1ff5 100644
--- a/gfx/webrender_bindings/WebRenderAPI.cpp
+++ b/gfx/webrender_bindings/WebRenderAPI.cpp
@@ -13,7 +13,7 @@
 #include "mozilla/layers/SynchronousTask.h"
 
 #define WRDL_LOG(...)
-//#define WRDL_LOG(...) printf_stderr("WRDL: " __VA_ARGS__)
+//#define WRDL_LOG(...) printf_stderr("WRDL(%p): " __VA_ARGS__)
 
 namespace mozilla {
 namespace wr {
@@ -619,7 +619,7 @@ DisplayListBuilder::PushStackingContext(const wr::LayoutRect& aBounds,
     perspective = ToLayoutTransform(*aPerspective);
   }
   const wr::LayoutTransform* maybePerspective = aPerspective ? &perspective : nullptr;
-  WRDL_LOG("PushStackingContext b=%s t=%s\n", Stringify(aBounds).c_str(),
+  WRDL_LOG("PushStackingContext b=%s t=%s\n", mWrState, Stringify(aBounds).c_str(),
       aTransform ? Stringify(*aTransform).c_str() : "none");
   wr_dp_push_stacking_context(mWrState, aBounds, aAnimationId, aOpacity,
                               maybeTransform, aTransformStyle, maybePerspective,
@@ -629,7 +629,7 @@ DisplayListBuilder::PushStackingContext(const wr::LayoutRect& aBounds,
 void
 DisplayListBuilder::PopStackingContext()
 {
-  WRDL_LOG("PopStackingContext\n");
+  WRDL_LOG("PopStackingContext\n", mWrState);
   wr_dp_pop_stacking_context(mWrState);
 }
 
@@ -642,8 +642,8 @@ DisplayListBuilder::DefineClip(const wr::LayoutRect& aClipRect,
       aComplex ? aComplex->Elements() : nullptr,
       aComplex ? aComplex->Length() : 0,
       aMask);
-  WRDL_LOG("DefineClip id=%" PRIu64 " r=%s m=%p b=%s complex=%d\n", clip_id,
-      Stringify(aClipRect).c_str(), aMask,
+  WRDL_LOG("DefineClip id=%" PRIu64 " r=%s m=%p b=%s complex=%zu\n", mWrState,
+      clip_id, Stringify(aClipRect).c_str(), aMask,
       aMask ? Stringify(aMask->rect).c_str() : "none",
       aComplex ? aComplex->Length() : 0);
   return wr::WrClipId { clip_id };
@@ -653,7 +653,7 @@ void
 DisplayListBuilder::PushClip(const wr::WrClipId& aClipId, bool aRecordInStack)
 {
   wr_dp_push_clip(mWrState, aClipId.id);
-  WRDL_LOG("PushClip id=%" PRIu64 "\n", aClipId.id);
+  WRDL_LOG("PushClip id=%" PRIu64 "\n", mWrState, aClipId.id);
   if (aRecordInStack) {
     mClipIdStack.push_back(aClipId);
   }
@@ -662,7 +662,7 @@ DisplayListBuilder::PushClip(const wr::WrClipId& aClipId, bool aRecordInStack)
 void
 DisplayListBuilder::PopClip(bool aRecordInStack)
 {
-  WRDL_LOG("PopClip id=%" PRIu64 "\n", mClipIdStack.back().id);
+  WRDL_LOG("PopClip id=%" PRIu64 "\n", mWrState, mClipIdStack.back().id);
   if (aRecordInStack) {
     mClipIdStack.pop_back();
   }
@@ -672,6 +672,7 @@ DisplayListBuilder::PopClip(bool aRecordInStack)
 void
 DisplayListBuilder::PushBuiltDisplayList(BuiltDisplayList &dl)
 {
+  WRDL_LOG("PushBuiltDisplayList\n", mWrState);
   wr_dp_push_built_display_list(mWrState,
                                 dl.dl_desc,
                                 &dl.dl.inner);
@@ -682,7 +683,7 @@ DisplayListBuilder::PushScrollLayer(const layers::FrameMetrics::ViewID& aScrollI
                                     const wr::LayoutRect& aContentRect,
                                     const wr::LayoutRect& aClipRect)
 {
-  WRDL_LOG("PushScrollLayer id=%" PRIu64 " co=%s cl=%s\n",
+  WRDL_LOG("PushScrollLayer id=%" PRIu64 " co=%s cl=%s\n", mWrState,
       aScrollId, Stringify(aContentRect).c_str(), Stringify(aClipRect).c_str());
   wr_dp_push_scroll_layer(mWrState, aScrollId, aContentRect, aClipRect);
   if (!mScrollIdStack.empty()) {
@@ -698,7 +699,7 @@ DisplayListBuilder::PushScrollLayer(const layers::FrameMetrics::ViewID& aScrollI
 void
 DisplayListBuilder::PopScrollLayer()
 {
-  WRDL_LOG("PopScrollLayer id=%" PRIu64 "\n", mScrollIdStack.back());
+  WRDL_LOG("PopScrollLayer id=%" PRIu64 "\n", mWrState, mScrollIdStack.back());
   mScrollIdStack.pop_back();
   wr_dp_pop_scroll_layer(mWrState);
 }
@@ -707,7 +708,7 @@ void
 DisplayListBuilder::PushClipAndScrollInfo(const layers::FrameMetrics::ViewID& aScrollId,
                                           const wr::WrClipId* aClipId)
 {
-  WRDL_LOG("PushClipAndScroll s=%" PRIu64 " c=%s\n", aScrollId,
+  WRDL_LOG("PushClipAndScroll s=%" PRIu64 " c=%s\n", mWrState, aScrollId,
       aClipId ? Stringify(aClipId->id).c_str() : "none");
   wr_dp_push_clip_and_scroll_info(mWrState, aScrollId,
       aClipId ? &(aClipId->id) : nullptr);
@@ -717,7 +718,7 @@ DisplayListBuilder::PushClipAndScrollInfo(const layers::FrameMetrics::ViewID& aS
 void
 DisplayListBuilder::PopClipAndScrollInfo()
 {
-  WRDL_LOG("PopClipAndScroll\n");
+  WRDL_LOG("PopClipAndScroll\n", mWrState);
   mScrollIdStack.pop_back();
   wr_dp_pop_clip_and_scroll_info(mWrState);
 }
@@ -727,7 +728,7 @@ DisplayListBuilder::PushRect(const wr::LayoutRect& aBounds,
                              const wr::LayoutRect& aClip,
                              const wr::ColorF& aColor)
 {
-  WRDL_LOG("PushRect b=%s cl=%s c=%s\n",
+  WRDL_LOG("PushRect b=%s cl=%s c=%s\n", mWrState,
       Stringify(aBounds).c_str(),
       Stringify(aClip).c_str(),
       Stringify(aColor).c_str());
@@ -790,7 +791,8 @@ DisplayListBuilder::PushImage(const wr::LayoutRect& aBounds,
                               wr::ImageRendering aFilter,
                               wr::ImageKey aImage)
 {
-  WRDL_LOG("PushImage b=%s cl=%s s=%s t=%s\n", Stringify(aBounds).c_str(),
+  WRDL_LOG("PushImage b=%s cl=%s s=%s t=%s\n", mWrState,
+      Stringify(aBounds).c_str(),
       Stringify(aClip).c_str(), Stringify(aStretchSize).c_str(),
       Stringify(aTileSpacing).c_str());
   wr_dp_push_image(mWrState, aBounds, aClip, aStretchSize, aTileSpacing, aFilter, aImage);