Replacing web content without changing the HTML

[Sebastian Sebald]

Hello everybody,

first of all I have to say that I just started digging into Mozilla
and Firefox Development but I hope my questions aren't too dumb :)
I'm used to work with JS, XML. On the other hand I have almost no idea
of the Mozilla API. I did some tutorials to get started. However I
couldn't find an answer for my question. So I decided to ask you guys.

The goal is to write an Addon/Extension, which replaces content of a
web page without changing the HTML. So JS doesn't have a chance to
capture the new content. This should be a similiar functionality the
findbar uses to highlight content. For all I know there has to be a
something in the "components.interfaces" in order to get this work.
Sadly I couldn't find any helpful documentation on the MozDev Center.

Is there a good docu for this interface? Or am I on the wrong track?

Cheers,
Sebastian

[John J. Barton]

I can't tell what track you are on, sorry. The content of a Web page
*is* HTML, so replacing the content without changing the HTML makes no
sense. And "So JS doesn't have a chance..." also is confusing because
the way you develop extensions is by writing JS. To get help you will
need to express your problem in some other words.
jjb