Type about:preferences#security<enter> in the address bar.

Under Logins, Turn off Remember Logins

In the event that the passwords information is lost, you should record all information in a separate text file somewhere else on your hard drive, or written down. You can easily copy and paste if you need to do so. If you are concerned about someone else looking at that file, you can compress it using a password.

Thank you.  :)

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Yes, I already selected your answer as the solution that worked.

Thanks, Angela