Your password will be shown to you in plain text

Today i accidentally entered wrong login details for facebook and this is what i got "Your login password will be shown to you in plain text below to make text input easier(Your login is still secure)". That message on its own made me even more suspicious. Of course the message was from facebook but the fact that am so used to never being shown password it got me thinking otherwise. Is it any good to show users their password on login and assume they will feel safe ?