Hi. I'm trying to install the new "lockbox" app on my iphone but I need to enter my firefox account password. I went to "preferences" and to "security settings" and found this incredibly long string of letters, numbers and symbols, alongside an equally long username. So long is the password that it isn't even all visible on the screen! So I decided to change it, but to do this I had to cut and paste the old password... which firefox then rejects. ("Incorrect password".) How was this password generated and why can't I change it? Heeeelp!!