Comment 172 for bug 747197

Not exactly but kind of. In your example that code generates a screenshot of the site while complete copy of the page have to remain as text and linked objects to let you scale it, select, copy and everything else. The only thing which shouldn't work is interactivity. I mean scripts must not work.
BTW, Scrapbook does such a thing already. I'd just like to see ability to make complete stand-alone static copy of the page in the Fx itself.