This component implements the following interfaces:
readonly AUTF8String nsICommandLineHandler.helpInfo
When the app is launched with the -help argument, this attribute is retrieved and displayed to the user (on stdout). The text should have embedded newlines which wrap at 76 columns, and should include a newline at the end. By convention, the right column which contains flag descriptions begins at the 24th character.
Reference documentation is generated from Mozilla's source.