If all you want to do is take a screenshot, I've had success with http://wkhtmltopdf.org/ http://wkhtmltopdf.org/ (which also outputs to image formats.) You ca

If all you want to do is take a screenshot, I've had success with http://wkhtmltopdf.org/ http://wkhtmltopdf.org/ (which also outputs to image formats.) You can't script it though.