<i>On Firefox, about:config is a great feature: if you know what you&#x27;re doing, you can tweak any setting that&#x27;s tweakable.</i><p>That said, I do wish they&#x27;d make it a bit more organised than a long list of tersely named options; perhaps a tree view like many other apps&#x27; settings use.<p>The idea of providing good defaults, and that of providing rich configuration options, are not necessarily opposites.