Autofill for password not working

Question

When I go to one specific website, the username is autofilled but not the password. I searched firefox preferences and hit "show passwords" and nothing was saved for that url--neither user name nor password.
So I "tricked" firefox into saving by changing my password for the account and the "save password" box appeared. Yea! I checked the pref window again and while the user name is still blank, the password is correct. The username must be coming from the "remember me" box that I checked on the website login.It isn't saving the password, either, but often sites do that
Things is--it's NOT the website b/c Safari saves the user name and password for that site just fine!

Answer 1

This happens when save form data is used to save only the name.
*Tools > Options > Privacy > Firefox will: "Use custom settings for history": "Remember search and form history"
*https://support.mozilla.org/kb/Form+autocomplete
Use these steps to remove saved (form) data from a drop-down list:
#click the (empty) input field on the web page to open the drop-down list
#highlight an entry in the drop-down list
#press the Delete key (on Mac: Shift+Delete) to remove it.
This website may be using autocomplete=off to prevent Firefox from saving the name and password.
You can remove autocomplete=off with a bookmarklet to make Firefox store form data like names and passwords.
*http://kb.mozillazine.org/User_name_and_password_not_remembered
Note that Firefox won't auto-fill a saved name automatically when autocomplete=off is used, so you need to double-click the empty name field to get a drop-down list.