CommonOptimization is an adware-type program. It attacks Mac computers mainly and may inject the Safari browser. It’s urgent for you not to tolerate this adware, but rather to get rid of it as soon as possible. The danger of CommonOptimization is that this program is interconnected with a lot of malicious websites, to which is tries to redirect your browser. Furthermore, the adware has got the features of a browser hijacker, which changes the default search engine from Google Search to SafeFinder, or some other third-party search engine not chosen by you personally.