is a Firefox
browser extension with strong inspiration from the Vim
text editor, with a mind towards faster and more efficient browsing. It has similar key bindings and you could call it a modal web browser, as key bindings differ according to which mode you are in. For example, it has a special Hint mode, where you can follow links easily with the keyboard only. Also most functionality is available as commands, typing
will go back within the current page history, just like hitting the back button in the toolbar.
Have a look, xmonad and vimperator and no more mouse is needed to work :)