html - autocomplete = 'off' is not working on firefox -

i facing browser issue:

i created 2 login pages of same domain.

1. www.example.com/login.cfm
2. www.example.com/newlogin.cfm

i put form name different 2 forms in these 2 page. put autocomplete = 'off' second form , text fields within form.(but on first form ).

now if save username , password @ time of login www.testdomain.com/login.cfm in browser, list of usernames auto populating in username field of second login page if auto complete off. need block security reasons. there way this? using firefox v21.

put hidden empty text field between username , password

<input type="text" name="username"> <!-- disables autocomplete --><input type="text" style="display:none"> <input type="password" name="password">