I was able to use Firefox web browsr earlier today, but after trying to log in to Facebook, which failed, my account was no longer accessable, I received a message indicating my acount was not connected.

I was able to use Firefox web browser earlier today, but after trying to log in to Facebook, which failed, my account was no longer accessible, I saw an indication that my account was not connected. Do I need to update my software for Firefox. I've been having difficulties logging in to Facebook.