List of Mozilla-Based Applications - Archive of obsolete content
http://www.mozdev.org http://xulapps.net/ http://dmoz.org/computers/data_formats/markup_languages/xml/applications/xul/applications/ http://blog.mozbox.org/post/2007/06/14/xul-activity-in-france http://www.mozilla.org/projects/security/pki/nss/overview.html http://en.wikipedia.org/wiki/spidermonkey_(javascript_engine) http://www.mozilla.org/rhino/users.html http://groups.google.com/group/mozilla.dev.tech.js-engine.rhino/browse_thread/thread/4eb9162c9c3054b0/1d4115b40373ca3b?lnk=raot http://www.ohloh.net/tags/xulrunner ...

Rhino community
there is a much older group, mozilla.dev.tech.js-engine.rhino, that is no longer actively used.