[Project_owners] Replace non-privileged page content.

[zhouchao]

Hi,

I have a problem with firefox 3.08. In my firefox extension I want to  
replace the non-privileged page content, and I am using the following  
code:

     var doc = gBrowser.contentDocument.wrappedJSObject;
     doc.open("text/html", "replace");
     doc.write(docHtml);
     doc.close();

It works well until updated my firefox to 3.08, In firefox 3.08 those  
code will not only replace the content in the web page, but also  
replace the URL address in the location bar.

How can I only replace content but keep the URL unchange?

Thanks.

Regards,
Chao ZHOU