Try one of these articles:
- Enable and disable cookies that websites use to track your preferences Websites store things like your preferences and login status in "cookies" on your computer. Learn how to manage cookies in Firefox.
- Delete cookies to remove the information websites have stored on your computer Websites store information such as site preferences and login status in "cookies" on your computer. Learn how to delete cookies in Firefox.
- Websites say cookies are blocked - Unblock them This article describes how to troubleshoot problems that involve websites reporting that cookies are blocked or disabled.