Chrome imitates Chrome far better than Firefox does. I just don't think they can catch up at this point.

edit: maybe you meant addons? Chrome has more addons, with more users, updated more often. Chrome fails at ublock because it wants to, but as long as you're not messing with Google's core business, Chrome is (of course) going to be better off than the product of the endangered company that solely survives from Google's donations.