Obviously by cater to developers, you don't mean web developers. I spend an extraneous hour or two, when creating a new web page, adding css hacks galore, so it will show up decently in the browser (and still lacks have the style, and functionality, firefox user see) For example, what about fixed windows? that way, when the user scrolls down the page, the menu stays with them, and without having to scroll back up, they can go to the next page. And, also my fancy web developer toolbar, allowing me to highlight different types of elements (tables, depracated, block level, etc...). And not just hightlight, but disable things on pages, view source, validate with a quick link, to make sure my pages are compliant to the standards, and much, much more. Now in regards to developers, check out the firefox extension page. Yes, all those people writing those extensions are "developers." Firefox has much more functionality than any other browser I've tried, and it's cross platform, meaning it works on almost any common platform today. If you haven't tried firefox, I highly suggest you give it a shot. The core browser is in and of itself, powerful, let alone, when coupled with the multitude of extensions to customize your browser. And, if you've tried the older versions, but haven't tried 0.8 yet, you should try it. It's made some huge jumps in usability.
Sam