Sorry, Office (urn:schemas-microsoft-com:office:office) is the wrong program to use for creating webpages for viewing in anything except for IE and its' clones. View Page Source from Firefox and you'll see all the code in green that Firefox doesn't understand. Plus, you are lacking a proper DOC-Type which tells the browser the "HTML language" to render the page in.

http://en.wikipedia.org/wiki/Doctype
http://en.wikipedia.org/wiki/Quirks_Mode

Try this program for writing compatible code that should be understood by all browsers.
http://kompozer.net/

Thank you. You found the problem and here is the cause. The cause was that I changed from Microsoft FrontPage 2003 web editor to Microsoft Expression WEB 4 editor. I purchased the Microsoft Expression Studio 4 Ultimate suite which has 4 very powerful programs in it. Solution in going back to Microsoft FrontPage 2003which works. I will give KOMPOZER a try.