Websites remembering you and automatically log you in is stored in a cookie. * Create an allow cookie exception (Tools > Options > Privacy > Cookies: Exceptions) to keep such a cookie, especially for secure websites and if cookies expire when Firefox is closed. Make sure that you do not run Firefox in Private Browsing mode. * https://support.mozilla.com/kb/Private+Browsing * In [[Private Browsing]] mode all cookies are session cookies that expire if that session is ended, so websites won't remember you. * Do not use [[Clear Recent History]] to clear the "Cookies" and the "Site Preferences" Clearing "Site Preferences" clears all exceptions for cookies, images, pop-up windows, software installation, and passwords. ---- * http://kb.mozillazine.org/Cookies * http://kb.mozillazine.org/Password_Manager