How to remove Searchmy.co browser hijacker from Mac

What Is Fire Search ?
Searchmy.co is a browser hijacker that at first glance appears to be a regular search engine similar to Yahoo, Bing or Google, but in reality it is not. Searchmy.co, like all hijackers (see also Searchbrowsersky, Simplesignsearch), positions itself as a program that can improve the quality of browsing and improve the quality of search results. This virus infiltrates the Mac in a stealthy manner and modifies browser settings, including the default home page and search engine, in order to monitor user actions.