diff --git a/content/xul/content/src/nsXULElement.cpp b/content/xul/content/src/nsXULElement.cpp
index 8698410df2da..de5860d17c23 100644
--- a/content/xul/content/src/nsXULElement.cpp
+++ b/content/xul/content/src/nsXULElement.cpp
@@ -1878,7 +1878,7 @@ nsXULElement::AppendChildTo(nsIContent* aKid, PRBool aNotify)
 
     NS_PRECONDITION((nsnull != aKid) && (aKid != NS_STATIC_CAST(nsIStyledContent*, this)), "null ptr");
 
-    if (! mChildren) {
+    if (!mChildren) {
         rv = NS_NewISupportsArray(getter_AddRefs(mChildren));
         if (NS_FAILED(rv)) return rv;
     }
diff --git a/layout/xul/base/src/nsBoxFrame.cpp b/layout/xul/base/src/nsBoxFrame.cpp
index 76d513028118..8d43264d4231 100644
--- a/layout/xul/base/src/nsBoxFrame.cpp
+++ b/layout/xul/base/src/nsBoxFrame.cpp
@@ -231,7 +231,16 @@ nsBoxFrame::Init(nsIPresContext*  aPresContext,
 
   nsSpaceManager* spaceManager = new nsSpaceManager(this);
   mInner->mSpaceManager = spaceManager;
+
+#ifdef DEBUG_evaughan
+  // This function is incredibly expensive in profiles. Unless it can be optimized, and
+  // because it's being used for debug purposes only, this call is being commented out.
+  // Contact hyatt@netscape.com if you have any questions.  Do not put it back in
+  // until the speed issues with the pseudostyle probes have been resolved, as this
+  // call substantially impacts box performance.
   mInner->UpdatePseudoElements(aPresContext);
+#endif
+
   mInner->mHorizontal = GetInitialAlignment();
   return rv;
 }
diff --git a/rdf/content/src/nsXULElement.cpp b/rdf/content/src/nsXULElement.cpp
index 8698410df2da..de5860d17c23 100644
--- a/rdf/content/src/nsXULElement.cpp
+++ b/rdf/content/src/nsXULElement.cpp
@@ -1878,7 +1878,7 @@ nsXULElement::AppendChildTo(nsIContent* aKid, PRBool aNotify)
 
     NS_PRECONDITION((nsnull != aKid) && (aKid != NS_STATIC_CAST(nsIStyledContent*, this)), "null ptr");
 
-    if (! mChildren) {
+    if (!mChildren) {
         rv = NS_NewISupportsArray(getter_AddRefs(mChildren));
         if (NS_FAILED(rv)) return rv;
     }