The Password Manager in Firefox is beneficial for anyone who maintains a large number of complicated passwords, but most people who are concerned with security would much rather enter them in manually. If Firefox keeps entering in passwords when you don’t want it to, you can easily kick the program into submission. Go to the Tools menu at the top of Firefox and select Options. From there, click on the Privacy button on the left hand side and select Saved Passwords. By clicking on View Saved Passwords, you can manage what passwords are saved and never saved. Along with this, a Master Password option is available if you’d like to protect your list of passwords. If you don’t want Firefox to remember your passwords anymore, just uncheck the Remember Passwords option.