how to delete cookies in my Mac computer
how to delete cookies
iMac 27″, macOS 10.12
Cookies are not related to your Mac. They are associated with the specific web browser that you use.
If you use multiple browsers (e.g. Safari, Chrome, Opera), then each of them may have their own set of cookies.
In each case, check the browser's preferences. For example, in Safari, you'd use: Safari -> Preferences ->Privacy -> Cookies and Website Data. Other browsers have similar options.