diff --git a/mozilla/layout/base/nsFrameTraversal.cpp b/mozilla/layout/base/nsFrameTraversal.cpp
index fdfec807593..32c4c4226bc 100644
--- a/mozilla/layout/base/nsFrameTraversal.cpp
+++ b/mozilla/layout/base/nsFrameTraversal.cpp
@@ -231,7 +231,7 @@ nsLeafIterator::Next()
   }
   else {
     nsCOMPtr<nsIAtom>atom;
-    while(parent && NS_SUCCEEDED(parent->GetFrameType(getter_AddRefs(atom))) && atom != nsLayoutAtoms::rootFrame){
+    while(parent && NS_SUCCEEDED(parent->GetFrameType(getter_AddRefs(atom))) && atom.get() != nsLayoutAtoms::rootFrame){
       if (NS_SUCCEEDED(parent->GetNextSibling(&result)) && result){
         parent = result;
         while(NS_SUCCEEDED(parent->FirstChild(mPresContext, nsnull,&result)) && result)
diff --git a/mozilla/layout/base/src/nsFrameTraversal.cpp b/mozilla/layout/base/src/nsFrameTraversal.cpp
index fdfec807593..32c4c4226bc 100644
--- a/mozilla/layout/base/src/nsFrameTraversal.cpp
+++ b/mozilla/layout/base/src/nsFrameTraversal.cpp
@@ -231,7 +231,7 @@ nsLeafIterator::Next()
   }
   else {
     nsCOMPtr<nsIAtom>atom;
-    while(parent && NS_SUCCEEDED(parent->GetFrameType(getter_AddRefs(atom))) && atom != nsLayoutAtoms::rootFrame){
+    while(parent && NS_SUCCEEDED(parent->GetFrameType(getter_AddRefs(atom))) && atom.get() != nsLayoutAtoms::rootFrame){
       if (NS_SUCCEEDED(parent->GetNextSibling(&result)) && result){
         parent = result;
         while(NS_SUCCEEDED(parent->FirstChild(mPresContext, nsnull,&result)) && result)