Hi Karen, Mozilla, the maker of Firefox, does not operate an independent search engine. Instead, it has built-in options for Google, Bing, and DuckDuckGo, and you can add others if you prefer those. The method for adding varies -- sometimes, you just right-click the address bar on the results page to add it, while other times you might need to install an add-on. See: [[Change your default search settings in Firefox]] What site do you prefer? If I misunderstood your question, could you explain in more detail?