This directory contains items that live in the /mozilla/chrome/toolkit.jar zip file at /content/global
The printdialog.xul and filepicker.xul are meant to be secure replacements for the standard mozilla widgets. For mozilla-1.0.0 and not tested on any other version.

The prindialog.xul is a replacment for the standard mozilla printdialog.xul It is the standard printdialog but has only the print and cancel buttons enabled. 

The filepicker.xul is a replacement for the filepicker dialog. It closes itself when it is called, the effect being that the filepicker never becomes visible to, usable by, the user.

The grippy-toolbar directory contains the collapsable-to-icon toolbar. The toolbar.xml and toolbar.css are the version of the toolbar that has collapsable grippies. The mozilla people have decided to drop this functionality as of version 1.2. toolbar.xml is the xbl definition and toolbar.css is the binding and styling definitions