Yes, Mozilla keeps it strictly within official DOM framework, document.all is/was IE-s proprietary collection.
There is very nice and frequently updated table for DOM properties in different browsers: <a href="
http://www.xs4all.nl/~ppk/js/index.html?/~ppk/js/dom1.html">http://www.xs4all.nl/~ppk/js/index.html?/~ppk/js/dom1.html</a>
It's quite proffessional work with nice comments.