How can cookies be managed on Mozilla Firefox version 3.5.5 or later?
Firefox includes built-in tools for managing persistent cookies. Optional add-ons are available for managing both Flash and persistent cookies. Go to Tools->Add-ons to display the Add-ons dialog box. This dialog includes a search tool for listing available add-ons. To delete existing cookies select Tools->Clear Recent History. In the Clear Recent History dialog box, check Cookies then select the Clear Now button. To manage future cookies select Tools->Options. In the Options dialog box select Privacy (top section of the dialog) and uncheck both “Accept cookies from sites” and “Accept third-party cookies.” The Privacy page within the Options dialog includes a button titled Show Cookies, which lists every cookie currently installed on your computer and includes buttons for managing cookie installation.