Top Firefox config tweaks

The Firefox homepage calls the web browser "fully customizable to your online life," and that's not just marketing claptrap. Beyond the extensive options available in its menus and dialogs, there's a lengthy set of advanced Firefox preferences that can customize the browser to your specific needs. Sure, your brother-in-law's not likely to edit Firefox's default configuration, but you? You're a power surfer and you want your web browser your way.