Do you mean names and passwords in the Password Manager or do you mean that you are no longer logged on to (remembered by) websites after closing and restarting Firefox? If the latter happens then you have a problem with cookies that are not kept or the file that stores the cookies is corrupted. * Websites remembering you and automatically log you in is stored in a cookie. * You must allow that cookie (Tools > Options > Privacy > Cookies: Exceptions), especially for secure websites and if you let cookies expire when Firefox closes * Make sure that you do not use [[Clear Recent History]] to clear the "Cookies" and the "Site Preferences" .... [[Clear Recent History]]: "Browser History" "Cache" "Download History" "Form & Search History" ---- Also make sure that you not run Firefox in (permanent) [[Private Browsing]] mode. ---- Your above posted system details show outdated plugin(s) with known security and stability risks. # Shockwave Flash 10.0 r12 # Next Generation Java Plug-in 1.6.0_20 for Mozilla browsers Update the [[Java]] plugin to the latest version. *http://java.sun.com/javase/downloads/index.jsp (Java Platform: Download JRE) Update the [[Managing the Flash plugin|Flash]] plugin to the latest version. *http://www.adobe.com/software/flash/about/