Not GP, but I'm currently using Vimium under Firefox. I've also heard of Vimperator and Tridactyl but never tried them. If you're willing to ditch the mainstre

Not GP, but I'm currently using Vimium under Firefox. I've also heard of Vimperator and Tridactyl but never tried them. If you're willing to ditch the mainstream browsers, there's Nyxt. For browsing static wikis from a tty, there's ELinks.