posted on Feb, 19 2013 @ 05:29 AM
I may have misunderstood, but you are fretting over Firefox entering the rest of you email when you started it yes?
I use 3 regular emails, one work, one personal and one for everything else,
Now they are all similar except 2 characters, so when i go to register on a new website it automatically gives me the full option of all my 3 emails
after i type the first 2 characters.
If this is what you are experiencing, do not fret, this is auto fill and how it works.
If however, it is remembering logging that were never used (Passwords), then it may be more serious.