How to change the search engine in Safari with Safari search engine extension

Custom Quest Safari search engine extension will offer a new way for searching in Safari: typing the keyword followed by the searched terms directly in the address bar. As end-user, you can also define your custom keyword search together with your favorite search engine and use that preference later on. Custom Quest comes with a list of already predefined shortcuts together with most popular search engine: Amazon, Aol, Ask, Baidu, Bing, DuckDuckGo, Facebook, Google, Imdb, Reddit, Startpage, Wikipedia, Yahoo, YouTube.

Custom Quest Safari extension uses short keywords to allow you to search any site you want, right from the toolbar: type a keyword followed by the searched terms.