rockford,
This is the browser limitation. We cannot overwrite this behavior.
Try this example:
For details, please check the following aritlce:
http://kb.mozillazine.org/Firefox_:_Midas
After you submit the form, the input box should be editable in your web page.
Demo:
asp.net Chat http://cutesoft.net/ASP.NET+Chat/default.aspx
Web Messenger: http://cutesoft.net/Web-Messenger/default.aspx
asp.net wysiwyg editor: http://cutesoft.net/ASP.NET+WYSIWYG+Editor/default.aspx
asp wysiwyg html editor: http://cutesoft.net/ASP
asp.net Image Gallery: http://cutesoft.net/ASP.NET+Image+Gallery/default.aspx
Live Support: http://cutesoft.net/live-support/default.aspx