I opened the browser (Firefox 1.0 on Windows XP) and got a message window saying something along the lines of : Choose profile to open (default was the only profile that existed). I clicked on default and got an error message - something like "Firefox is already running an instance of this profile, choose another profile". But as far as I could tell, there was not another Firefox window open (according to the Task Manager, and I was the only user logged in), so I gave up and created a second profile and opened it. I've subsequently logged out and back in, but when I open the browser, I'm taken directly to this new profile. I want my old profile back - it has all my extensions and bookmarks. What do I do? Is there something in the Firefox folder that can be loaded to restore default's bookmarks (more important) and extensions (less important)?