Remove auto-fill username from log-in screen

[rajramani]

I would like to remove the auto-filled username from my paypal log-in screen. I am using Firefox 26.0.  How does one do this.  I have already cleared the cache.  I do not remember how I saved the username when I logged in as I normally do not accept prompts to remember usernames or pompts.

[snowshoe]

See the tips here:

http://support.mozilla.org/en-US/kb/control-firefox-automatically-fills-in-forms