I think we are looking at different points.
I was looking at putting rss feeds into a web page, and I did accomplish this with a php code. Quite nice actually. Now in our intranet page, we have a centralized site with news from MS bulletings, and other things, and it is updated automatically.
Now..from what you said, I am guessing that your problem is that you are doing the wrong bookmarking in Firefox. For RSS feeds to work you have to open the Manage bookmarks window, and then File and then New Live bookmark.
Doing it this way the RSS feed will show in the bookmarks as it should.