- E4X Quick Start Guide is an enormously helpful a starting point for learning how to manipulate the XML tree using E4X.
- rephrase § E4X also has useful hints.
- python-spidermonkey by Paul Davis. This python bridge module is needed for the run-spidermonkey.py test script.
- jslibs by soubok. This tracemonkey-based standalone runtime environment is needed for the run-tracemonkey test script.