Possible to modify DOM during/before initial DOM parsing?

Posted by AMO on Stack Overflow See other posts from Stack Overflow or by AMO
Published on 2010-04-04T17:08:38Z Indexed on 2010/04/04 17:13 UTC
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dom

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JavaScript

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events

Is it possible to modify the DOM during or before the initial DOM parsing? Or do I have to wait until the DOM is parsed and built before interacting with it? More specifically, is it possible to hinder a script element in DOM from running using userscripts/content scripts or similar in chrome or firefox?

Tried using eventListeners on DOMNodeInserted before the DOM is parsed, but these are only fired after the DOM is built.

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