Gold addon. Been using it for the past ~6 months. Very intuitive once you get the hang of it. Great for research and googling. Only annoying issue is Firefox blocking the plugin in pdfs, but that's pretty much unfixable. (please fix Firefox! \o/ )

yay an extension for keyboard browsing that's up to date! thanks mr. blott and mr. crosby.

Truly a cool addon, feels really practical to use.
Would love to have a shortcut to completely disable/enable it, though, since it does get a little awkward in some websites. This is an Emergency!