In FireFox/Safari, my password keeps popping up in a dropdown menu. How do I stop that from happening?
It's common to accidentally type your password rather than your user name in the login field of a website. Once the password has been typed in that field, it may appear in the drop down menu the next time you try to login to the site, compromising your security.
For instructions to clear the cache where those passwords are stored, see kb article #111. (It's not necessary to Force Quit FireFox or Safari then restart it as described in article #111, you'll only need to clear the cache.)