hello, your login information is generally stored in cookies - Cookies - Information that websites store on your computer. you have the "Self-Destructing Cookies" extension installed under firefox > addons > extensions which will interfere with the cookie management in firefox and clear cookies (& therefore log you out) as soon as you leave a page. you could either try to disable/remove this extension or create white-list rules for sites you're visiting frequently.

I notice that you have TLS disabled.

Any special reason why this is the case?

• security.enable_ssl2: True (SSL2 is no longer supported, so you can reset this pref)
• security.enable_tls: False

If you didn't create the user.js file yourself then you can remove it as will or check the content to make sure that you want to keep those pref settings.

The user.js file is read every time Firefox is started and prefs set in user.js will override settings from the previous session saved in prefs.js.
So prefs that are set via user.js can't be changed permanently and changes made in Firefox only last for the current session.

• http://kb.mozillazine.org/Preferences_not_saved