Nearly a stupid script. Simplified version of the original "Unhide Passwords extension":[http://www.contrex.ca/gecko/].

There is older and most probably better (because xpathed) variant: Show Password onFocus by LouCypher. Kudos : )

Notes:
- To make the Password Manager remember newly typed password, you will have to move your focus from the password field before submitting by hitting enter. (Otherwise this field will remain text so the PM will remain 'dis attracted'.) In typical login form, pressing TAB on the password field moves your focus to the submit button.
- Works in framesets.