Is there a possibility to work with Freemind maps, if for some reason I cannot install JRE in my computer?

I've tried to see the toolbar in the browser window by including the PARAM described in http://freemind.sourceforge.net/wiki/index.php/Asked_Questions#To_view_the_toolbar_automatically_after_the_applet_starts
...but it doesn't work  :(   Any idea why? (I am using Firefox as a browser and normal Freemind browsing works fine  :)
Would this option help me to modify maps directly on
the server from my web browser?

Thanks for your help  :)

     Rolf Grau