When browsing, a web page will form some cookies to record what you have reached online. Some of them are harmful because they can hide in your browser for some malicious purposes. To deal with the problem, IObit Malware Fighter will clear those tracking cookies automatically once your browser is closed. Besides, it provides the detailed number of the cookies that have been cleared on your computer. In this case, there is no need to worry about leaking private message through browsing history.