Hi! Have you checked this article? [[Settings for privacy, browsing history and do-not-track]] If so, can you be a little bit more specific? What does happen when you have "Remember history" activated? When is the information deleted, etc. Is it after closing Firefox? After restarting your computer? Is it your personal computer or is it a work computer? Are you the administrator of the computer? The more information you give us the easier will be for us to give yo a precise answer. Best, Ibai