e.g., nsCSSFrameConstructor::CreateAnonymousTreecellFrames (which is called a _lot_ for big trees) uses nsString for automatic variables, NS_NewAtom() instead of nsXULAtoms, etc.
*** This bug has been marked as a duplicate of 9489 ***
Marking VERIFIED DUPLICATE per waterson's comments.
BULK MOVE: Changing component from XUL to XP Toolkit/Widgets: XUL. XUL component will be deleted.