Try Pentadactyl on FF. Made me switch from Chrome to FF for regular browsing. Unfortunately Chrome's limited api makes it impossible to port Penta's robustness to Chrome.
Yes. I tried some Vim plugin for Chrome. It sucked. Pentadectyle is very robust and full-featured. Difference is considerable as compared to its Chrome counterpart. Completely transforms your FF experience.
The only thing I dislike about Vimium is it doesn't work on the "New Tab" window.