|What exactly do you mean by "my passwords are stolen"?|
Perhaps what you are seeing is the pasword(s) as "remembered" by the computer; an option which exists in Mac OS, and I think current windows OS?
Usually there is a choice to "remember/retain/save/store" (whichever) a password required to logon to a given on-line site. Typically there is a tick box which one can tick and thus elect to save the logon details - password included. Leaving it unticked means the logon details will not be retained/remembered - at least the password part.