The "Always use private browsing mode" box was always UNchecked. I normally DON'T connect to most other websites securely (showing https), it's ONLY on Youtube; which I normally have NO problem with (it's more secure). I NEED to be ABLE TO do it sometimes in order for TWO Firefox (Youtube) extensions (ie. ProxtubeYoutube & Unblocker) to work! So, how can I turn it OFF for the Youtube site.