--- a/gfx/layers/Layers.cpp
+++ b/gfx/layers/Layers.cpp
@@ -1977,22 +1977,22 @@ Layer::PrintInfo(std::stringstream& aStr
   if (GetIsFixedPosition()) {
     LayerPoint anchor = GetFixedPositionAnchor();
     aStream << nsPrintfCString(" [isFixedPosition scrollId=%lld sides=0x%x anchor=%s]",
                      GetFixedPositionScrollContainerId(),
                      GetFixedPositionSides(),
                      ToString(anchor).c_str()).get();
   }
   if (GetIsStickyPosition()) {
-    aStream << nsPrintfCString(" [isStickyPosition scrollId=%d outer=%f,%f %fx%f "
-                     "inner=%f,%f %fx%f]", mStickyPositionData->mScrollId,
+    aStream << nsPrintfCString(" [isStickyPosition scrollId=%d outer=(%.3f,%.3f)-(%.3f,%.3f) "
+                     "inner=(%.3f,%.3f)-(%.3f,%.3f)]", mStickyPositionData->mScrollId,
                      mStickyPositionData->mOuter.x, mStickyPositionData->mOuter.y,
-                     mStickyPositionData->mOuter.width, mStickyPositionData->mOuter.height,
+                     mStickyPositionData->mOuter.XMost(), mStickyPositionData->mOuter.YMost(),
                      mStickyPositionData->mInner.x, mStickyPositionData->mInner.y,
-                     mStickyPositionData->mInner.width, mStickyPositionData->mInner.height).get();
+                     mStickyPositionData->mInner.XMost(), mStickyPositionData->mInner.YMost()).get();
   }
   if (mMaskLayer) {
     aStream << nsPrintfCString(" [mMaskLayer=%p]", mMaskLayer.get()).get();
   }
   for (uint32_t i = 0; i < mScrollMetadata.Length(); i++) {
     if (!mScrollMetadata[i].IsDefault()) {
       aStream << nsPrintfCString(" [metrics%d=", i).get();
       AppendToString(aStream, mScrollMetadata[i], "", "]");