Get content of the Google Docs editor

I'm developin开发者_StackOverflow中文版g a Firefox extension that should work with Google Docs editor. Is there any way to retrieve the content of the opened document?

Are you looking for the actual HTML of the Doc? If so you can use Firebug and highlight your document to get the HTML.

Firebug is open-source, so you should be able to find out how they do it.