--- a/layout/painting/nsDisplayList.cpp
+++ b/layout/painting/nsDisplayList.cpp
@@ -912,17 +912,17 @@ nsDisplayListBuilder::nsDisplayListBuild
       mWindowDraggingAllowed(false),
       mIsBuildingForPopup(nsLayoutUtils::IsPopup(aReferenceFrame)),
       mForceLayerForScrollParent(false),
       mAsyncPanZoomEnabled(nsLayoutUtils::AsyncPanZoomEnabled(aReferenceFrame)),
       mBuildingInvisibleItems(false),
       mHitTestShouldStopAtFirstOpaque(false)
 {
   MOZ_COUNT_CTOR(nsDisplayListBuilder);
-  PL_InitArenaPool(&mPool, "displayListArena", 4096,
+  PL_InitArenaPool(&mPool, "displayListArena", 8192,
                    std::max(NS_ALIGNMENT_OF(void*),NS_ALIGNMENT_OF(double))-1);
 
   nsPresContext* pc = aReferenceFrame->PresContext();
   nsIPresShell *shell = pc->PresShell();
   if (pc->IsRenderingOnlySelection()) {
     nsCOMPtr<nsISelectionController> selcon(do_QueryInterface(shell));
     if (selcon) {
       selcon->GetSelection(nsISelectionController::SELECTION_NORMAL,