...Towards this end, we’ve created the liberator library for Mozilla-based applications, to encapsulate as many of these general principles as possible, and liberate developers from the tedium of reinventing the wheel.´Vimperator 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:back will go back within the current page history, just like hitting the back button in the toolbar.