Unfortunately, cookies can also be used by advertisers such as DoubleClick to track your web surfing habits so that they can deliver ads based on your interests. Many people consider this practice an invasion of their privacy. While it is possible to disable cookies in your web browser, this may limit the functionality of some websites that rely on them. For this reason, you may want to leave cookies enabled. However, you can delete cookies downloaded to your hard drive at any time.
To delete cookies in Safari, select Safari, Preferences, Security on the menu bar, then click on the Show Cookies button.
This will open up a window showing all the cookies stored on your computer. To remove any of them, make sure they are selected and then click on the Remove button at the bottom of the window. You can also remove all cookies stored on your computer by clicking on the Remove All button while you have this window open.
To delete cookies in Mozilla Firefox for the Mac, select Firefox, Preferences, Privacy and click on the Clear button.
You can delete individual cookies by clicking on the View Cookies button, selecting the cookie you want to delete, and clicking on the Remove Cookie button.
If you have selected to save your login information for a website, you will have to reenter that information the next time you visit the website if you choose to delete cookies.