Best keyboard-based addon I've found, now the vimFx is unavailable.
But there is still some work to do. (I wish I could contribute, but I'm not a developer).
One Important thing is the "Activate clipboard" feature. It is just opening Google search page and that's totally annoying, especially for me as someone who does not use google search at all.
One thing that would be good if it'd be implemented is that little hint at the bottom right corner of the page in vimFx that shows the currently triggered keys. Another thing I would be glad if implemented is the visual clue to know whether the addon is activated in current page or not, like vimFx icon in toolbar did so.
Oh. One of the most needed features for me is the "find mode" that is completely missing.
Wish you the best and appreciate the work.
good luck.