The private mode is great. However, there is something which Firefox stores which I wish to delete, but cannot find out how. When I visit my email provider, I am asked for my email address, and then in the next field for my password. When I enter my email address, Firefox automatically suggests names which are stored, starting with the first letter which I typed. As an example, I type in phil and already the box suggests my full email address: phil.landau@vr-web.de. Now my problem: One time, I entered my email address, but without thinking, followed it by my password (for example 1234xyz), without changing fields. Now, when I start to enter my email address, the box comes up with 2 suggestions - phil.landau@vr-web.de, and phil.landau1234xyz. This means that my password is now visible to anybody using my PC. Where are these suggestions stored, and how can I delete them?