diff --git a/content/html/style/src/nsHTMLStyleSheet.cpp b/content/html/style/src/nsHTMLStyleSheet.cpp
index 7451779353a4..91063b7f659c 100644
--- a/content/html/style/src/nsHTMLStyleSheet.cpp
+++ b/content/html/style/src/nsHTMLStyleSheet.cpp
@@ -2680,6 +2680,7 @@ HTMLStyleSheetImpl::ConstructXULFrame(nsIPresContext*  aPresContext,
   if (aTag == nsnull)
     return NS_OK;
 
+  nsXULAtoms::AddrefAtoms();
   PRInt32 nameSpaceID;
   if (NS_SUCCEEDED(aContent->GetNameSpaceID(nameSpaceID)) &&
       nameSpaceID == nsXULAtoms::nameSpaceID) {
@@ -2732,6 +2733,7 @@ HTMLStyleSheetImpl::ConstructXULFrame(nsIPresContext*  aPresContext,
         // Add the table frame to the flow
         aFrameItems.AddChild(aNewFrame);
       }
+      nsXULAtoms::ReleaseAtoms();
       return rv;
   }
   else if (aTag == nsXULAtoms::treeitem)
@@ -2745,6 +2747,7 @@ HTMLStyleSheetImpl::ConstructXULFrame(nsIPresContext*  aPresContext,
                  aFrameItems, aFixedItems);
     
     // No more work to do.
+    nsXULAtoms::ReleaseAtoms();
     return rv;
   }
   else if (aTag == nsXULAtoms::treechildren)
@@ -2779,6 +2782,7 @@ HTMLStyleSheetImpl::ConstructXULFrame(nsIPresContext*  aPresContext,
     }
 
     // No more work to do.
+    nsXULAtoms::ReleaseAtoms();
     return rv;
   }
   else if (aTag == nsXULAtoms::treerow)
@@ -2801,6 +2805,7 @@ HTMLStyleSheetImpl::ConstructXULFrame(nsIPresContext*  aPresContext,
     rv = ConstructTreeCellFrame(aPresContext, aContent, aParentFrame, aStyleContext,
                                 aAbsoluteItems, aNewFrame, aFixedItems, allowEvents);
     aFrameItems.AddChild(aNewFrame);
+    nsXULAtoms::ReleaseAtoms();
     return rv;
   }
   else if (aTag == nsXULAtoms::treeindentation)
@@ -2859,7 +2864,7 @@ HTMLStyleSheetImpl::ConstructXULFrame(nsIPresContext*  aPresContext,
       aFrameItems.AddChild(placeholderFrame);
     }
   }
-
+  nsXULAtoms::ReleaseAtoms();
   return rv;
 }
 
diff --git a/layout/html/style/src/nsHTMLStyleSheet.cpp b/layout/html/style/src/nsHTMLStyleSheet.cpp
index 7451779353a4..91063b7f659c 100644
--- a/layout/html/style/src/nsHTMLStyleSheet.cpp
+++ b/layout/html/style/src/nsHTMLStyleSheet.cpp
@@ -2680,6 +2680,7 @@ HTMLStyleSheetImpl::ConstructXULFrame(nsIPresContext*  aPresContext,
   if (aTag == nsnull)
     return NS_OK;
 
+  nsXULAtoms::AddrefAtoms();
   PRInt32 nameSpaceID;
   if (NS_SUCCEEDED(aContent->GetNameSpaceID(nameSpaceID)) &&
       nameSpaceID == nsXULAtoms::nameSpaceID) {
@@ -2732,6 +2733,7 @@ HTMLStyleSheetImpl::ConstructXULFrame(nsIPresContext*  aPresContext,
         // Add the table frame to the flow
         aFrameItems.AddChild(aNewFrame);
       }
+      nsXULAtoms::ReleaseAtoms();
       return rv;
   }
   else if (aTag == nsXULAtoms::treeitem)
@@ -2745,6 +2747,7 @@ HTMLStyleSheetImpl::ConstructXULFrame(nsIPresContext*  aPresContext,
                  aFrameItems, aFixedItems);
     
     // No more work to do.
+    nsXULAtoms::ReleaseAtoms();
     return rv;
   }
   else if (aTag == nsXULAtoms::treechildren)
@@ -2779,6 +2782,7 @@ HTMLStyleSheetImpl::ConstructXULFrame(nsIPresContext*  aPresContext,
     }
 
     // No more work to do.
+    nsXULAtoms::ReleaseAtoms();
     return rv;
   }
   else if (aTag == nsXULAtoms::treerow)
@@ -2801,6 +2805,7 @@ HTMLStyleSheetImpl::ConstructXULFrame(nsIPresContext*  aPresContext,
     rv = ConstructTreeCellFrame(aPresContext, aContent, aParentFrame, aStyleContext,
                                 aAbsoluteItems, aNewFrame, aFixedItems, allowEvents);
     aFrameItems.AddChild(aNewFrame);
+    nsXULAtoms::ReleaseAtoms();
     return rv;
   }
   else if (aTag == nsXULAtoms::treeindentation)
@@ -2859,7 +2864,7 @@ HTMLStyleSheetImpl::ConstructXULFrame(nsIPresContext*  aPresContext,
       aFrameItems.AddChild(placeholderFrame);
     }
   }
-
+  nsXULAtoms::ReleaseAtoms();
   return rv;
 }
 
diff --git a/layout/style/nsHTMLStyleSheet.cpp b/layout/style/nsHTMLStyleSheet.cpp
index 7451779353a4..91063b7f659c 100644
--- a/layout/style/nsHTMLStyleSheet.cpp
+++ b/layout/style/nsHTMLStyleSheet.cpp
@@ -2680,6 +2680,7 @@ HTMLStyleSheetImpl::ConstructXULFrame(nsIPresContext*  aPresContext,
   if (aTag == nsnull)
     return NS_OK;
 
+  nsXULAtoms::AddrefAtoms();
   PRInt32 nameSpaceID;
   if (NS_SUCCEEDED(aContent->GetNameSpaceID(nameSpaceID)) &&
       nameSpaceID == nsXULAtoms::nameSpaceID) {
@@ -2732,6 +2733,7 @@ HTMLStyleSheetImpl::ConstructXULFrame(nsIPresContext*  aPresContext,
         // Add the table frame to the flow
         aFrameItems.AddChild(aNewFrame);
       }
+      nsXULAtoms::ReleaseAtoms();
       return rv;
   }
   else if (aTag == nsXULAtoms::treeitem)
@@ -2745,6 +2747,7 @@ HTMLStyleSheetImpl::ConstructXULFrame(nsIPresContext*  aPresContext,
                  aFrameItems, aFixedItems);
     
     // No more work to do.
+    nsXULAtoms::ReleaseAtoms();
     return rv;
   }
   else if (aTag == nsXULAtoms::treechildren)
@@ -2779,6 +2782,7 @@ HTMLStyleSheetImpl::ConstructXULFrame(nsIPresContext*  aPresContext,
     }
 
     // No more work to do.
+    nsXULAtoms::ReleaseAtoms();
     return rv;
   }
   else if (aTag == nsXULAtoms::treerow)
@@ -2801,6 +2805,7 @@ HTMLStyleSheetImpl::ConstructXULFrame(nsIPresContext*  aPresContext,
     rv = ConstructTreeCellFrame(aPresContext, aContent, aParentFrame, aStyleContext,
                                 aAbsoluteItems, aNewFrame, aFixedItems, allowEvents);
     aFrameItems.AddChild(aNewFrame);
+    nsXULAtoms::ReleaseAtoms();
     return rv;
   }
   else if (aTag == nsXULAtoms::treeindentation)
@@ -2859,7 +2864,7 @@ HTMLStyleSheetImpl::ConstructXULFrame(nsIPresContext*  aPresContext,
       aFrameItems.AddChild(placeholderFrame);
     }
   }
-
+  nsXULAtoms::ReleaseAtoms();
   return rv;
 }