<ol> <li>You can delete cookies already stored on your computer—for example:<br> <ol> <li>in Internet Explorer (version 10), you must manually delete cookie files (you can find instructions for doing so at http://support.microsoft.com/kb/278835 );</li> <li>in Firefox (version 24), you can delete cookies by clicking “Tools,” “Options,” and “Privacy”, then selecting “Use custom settings for history”, clicking “Show Cookies,” and then clicking “Remove All Cookies”.