Okay, I think there is a misunderstanding. I want a feature equivalent to 'find as you type' in Firefox. Just start typing while the focus point is on the content area of the tab, and the first search result gets highlighted. No need for command+F.

This is really the main reason firefox is my default browser.

Unless I'm mistaken, Safari can't do this:

There's the "logout" link on this page, I just start typing l-o-g..., and once it gets highlighted, I can hit return and it'll click the link for me. Or if I need to go to the next word, I can still hit command+G. I don't have to invoke Find either, I can just start typing.