D

darkstar

A domain name used by the book's author.

devmo

http://developer.mozilla.org/, a developer documentation site for Mozilla.

dockable

A window, toolbar, or sidebar that can be locked to a certain position in the parent window. Many toolbars can either float or be docked.

Document.open

Opens a document.

dupeme

Means "I believe this is a duplicate bug, but I cannot find it at the moment."