ASP.NET XML parsing error only on FireFox

I get this wired error only when I try to access the web page in FireFox.. IE works just fine..

XML Parsing Error: not well-formed
Location: http://localhost/site/Home.aspx
Line Number 1, Column 2:<%@ Page Language="C#" 开发者_开发问答MasterPageFile="~/Site1.Master" AutoEventWireup="true" CodeBehind="Home.aspx.cs"

Am I missing something?

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You seem to be accessing the page from the file system directly. Check the URLs in the address bar.

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Not the right answer.. but upgraded to FF 3.6 and it works just fine..