I don't see those options on mine. The closest thing I can think of without using any plugins is to go to about:config and change browser.search.openintab to true. Then, instead of clicking the new tab button (or hitting ctrl+T) you just type your search into the built in search box. When you hit enter it'll open a new tab with your search results. It's not exactly what you're looking for, but might be a viable alternative.