Adding screenshot functionality to a firefox extension

Question

Is there a cross-platform approach to taking screenshots from a firefox extension?

Ideally I\'d like to be able to take a screenshot of a dom element (irrespective of wh

Answer 1

I guess it would be something like this:

1. Copy the DOM element in question to a separate iframe or browser (which is not visible to the user)
2. Paint the window of that iframe onto an html canvas using drawWindow(). Check out the source of the Tab Preview addon to see how this is done.