@theheroofmc You can create "search engines" by right-clicking the search field (for example YouTube's) and clicking "Create search engine...". Then when you type the search engine's shortcut in the address bar (for example, "you"), you can insert a space followed by your search terms (for example, "you cat meowing" to search cat meowing videos on YouTube).
It does bother me though that you have to use a space instead of the tab key...