==== Apple tools ====
Apple provides [http://developer.apple.com/documentation/Performance/Conceptual/ManagingMemory/Articles/FindingLeaks.html some tools] for Mac OS X that probably report similar problems to those reported by Purify LSAN and Valgrind. The "leaks" tool is not recommended for use with SpiderMonkey or Firefox, because it gets confused by tagged pointers and thinks objects have leaked when they have not (see {{bug|390944}}).
=== Leak tools for debugging memory growth that is cleaned up on shutdown ===