Autofill is a function in some computer applications or programs, typically those containing forms, which fills in a field automatically.
Most of the time, such as in Internet Explorer and Google Toolbar, the entries depend on the form field's name, so as to not enter street names in a last name field or vice versa. For this use, RFC 3106 proposed names for such form fields, but in the HTML 5 specification this RFC is no longer referenced, thus leaving the selection of names up to each browser's implementation.
Companies which specialise in autofill are:
References
Autofill Wikipedia(Text) CC BY-SA