I would like to take a screenshot of the page and provide the user with the opportunity to save it on my desktop (with the standard request to save the OS file). Is this possible from the Chrome Extension environment? I'm not worried about the image side, but more about saving the user's file system.
I looked at the following pages (among others):
Create a Chrome extension to upload a file
http://www.html5rocks.com/en/tutorials/file/filesystem/#toc-support
Take a look at this HTML5Rocks update: http://updates.html5rocks.com/2011/08/Saving-generated-files-on-the-client-side
Here is a demonstration of this in action: http://eligrey.com/demos/FileSaver.js/