How to Clean a Doubleclick Tracking Cookie

Remove Cookies From IE
1. Click on the 'Safety' button in Internet Explorer.
2. Click on 'Delete Browsing History' and then click on the 'Cookies' option.

3. Click 'Delete' and the cookies in IE are removed.
Remove Cookies From Firefox
4. Click on 'Tools' and click on 'Options.'
5. Click on the 'Privacy' tab or section.
6. Click on 'Remove individual cookies' and type 'doubleclick' into the 'Search' bar.
7. Click on the Doubleclick cookie that appears, click 'Remove Cookies,' then click 'Close' and 'OK.'