Also see sibling. I use Firefox daily and I have both a search bar that I use when I really want to search and I also don't see any "Search" stuff in my address bar. When I type "n" I can hit enter because it finds news.ycombinator.com in my history. All the next results are other things from my history which have an n in it.

I have browser.urlbar.showSearchSuggestionsFirst=false