PUBLIC MARKS from decembre with tags xul & script

DOM (Document Object Model) events allow event-driven programming languages like JavaScript, JScript, ECMAScript, VBScript and Java to register various event handlers/listeners on the element nodes inside a DOM tree, e.g. HTML, XHTML, XUL and SVG documents. Historically, like DOM, the event models used by various web browsers had some significant differences. This caused compatibility problems. To combat this, the event model was standardized by the W3C in DOM Level 2.

manipuler données XUL avec greasemonkey.....est-ce possible? par exemple pour modifier l'extension officielle de delicious.