Is there such a thing? I've tried Onyx and it doesn't clean out my Firefox files (cache, history, etc). The strange thing is that it used to. When I first got my MacBook about 13 months ago Onyx was great, but then when Firefox 3 came out it just stopped being able to clean out Firefox's history and subsequent versions of Onyx have failed to rectify this. So basically I'm looking for a free (or cheap) Mac version of CCleaner.