That's what I call dedication - in the documentation for a purely keyboard-controlled Mozilla:

You should never have to reach for your mouse. To make sure Conkeror remains pure, I do not own a mouse.

So if you're a mouse-phobic, you might find some relief with this browser.

And because I'm an experimentally inclined fellow, I naturally had to try it out right away. Ok, Emacs key bindings are terrible (hey, I'm a VI guy) but still the whole thing is quite usable - you could get used to it if only the other applications on your system had similar controls. And here's a tip for Mac users: yes, the whole thing works for you too. However, you do need to start the browser with a parameter, but that's not supported by Firefox.App. Instead, just enter the following command in the terminal (warning, one line!): /Applications/Firefox.App/Contents/MacOS/firefox -chrome chrome://conkeror/content

You may need to adjust the path to Firefox.App. After that, a small window opens with a rather spartan help file. Read it thoroughly, because if you don't at least remember how to open the help page, you'll be stuck. The big B goes back in the history, so if you get lost, you can always get back to the help with it. Oh yes, and to quit doesn't work with Apple-Q - after all it's Emacs. So press Ctrl-X and C one after the other.