asp.net - How to name a file for download on Firefox?

Question

The following headers work on IE but not on FF

<%@ Page Language="C#" ContentType="text/csv" Inherits="System.Web.Mvc.ViewPage"%>
<% Response.AddHeader("Content-Disposition", "filename=report.csv;attachment"); %>

In FF the suggested name in FF appears as "report" without the extension.

Answer 1

filename is just an parameter of Content-Dispostion. So you have to swap both:

<% Response.AddHeader("Content-Disposition", "attachment;filename=report.csv"); %>