Browser plugin for saving webpage images

We are interested in? a browser plugin? that will allow to take screenshots of? a current web page, save them as a JPG and post them to a web server. The plugin will need to: 1)? Capture an image of the full page that's loaded in the browser, including content that may be hidden, beyond the viewable area / scrollbars. 2) Save the captured image as a JPG. 3) Send the image via an HTTP post to a web server. Ideally, the plugin should prompt the user asking for a title for the file, before sending it to the web server. Thank you.