do tracking cookies get onto imac like it does on windows ? or is imac imune to them ?

Answer 1

Cookies are actually related to the browser, not the operating system (other than storage on the file system). As long as the browser supports cookies, and modern browsers definitely do, you could be subject to cookies tracking your surfing habits. What you might want to do, if worried about the cookies, is look at the browser configuration and change the way it handles the cookies.