This is a list of methods on the core classes, for use in your programs. If it's not listed here, that's probably because the documentation is out of date, not for security reasons or anything; MOZ is a capablitiy-based system, if you want to shoot yourself in the foot, that's fine. Please inform the author of all missing entries.
Note that this is a very brief treatment of the various methods; details should be gleaned from the source code.
Note further that verb methods are not listed here, because they cannot be called directly, and they can be deduced from the list of commands anyways.