How to Delete Advertising Cookies

By Micah McDunnigan

As advertising cookies accumulate, then can progressively slow down your browsing experience.
i George Doyle/Stockbyte/Getty Images

The ads you see on websites are not randomly generated: online advertising companies select the ads on which they think you are most likely to click. How do ad companies predict this? By loading small files called cookies onto your computer, these companies collect histories of your browsing habits. While these cookies are vital to the advertising world, they can slow down your business as they build up and slow down your Internet browser. Fortunately, it is a simple matter to delete advertising cookies.


Click the "Firefox" button at the top of your window, then click on "Options."

Click the "Privacy" icon in the "Options" window, then click the "remove individual cookies" link.

Proceed to select file entries in the "Cookies" dialogue window whose titles do not correspond to websites you regularly use, then click the "Remove Cookies" button.

Click the "Close" button when you are done.


Click on Chrome's menu button to the immediate right of your address bar, then select "Settings."

Click the "Show Advanced Settings" link at the bottom of the "Settings" page.

Click the "Content Settings" button, then click the "All Cookies and Site Data" button.

Click on entries in the "Cookies and Site Data" dialogue box that do not correspond to sites you regularly visit, then click the "x" on the right side of the entry.

Click the "OK" button when you are done.

Internet Explorer

Click on the gear shaped icon to the right of your open tabs.

Move your cursor over the "Safety" entry in the menu that will appear below the gear shaped icon.

Click on "Delete browsing history."

Click the check-box next to "Cookies" if it is not already checked. Proceed to uncheck the box next to any other items in "Delete Browsing History" dialogue box, such as "History" or "Passwords," that you do not wish to delete.

Click the "Delete" button.