Produces right-click-save-as links for Coursera courses. Only works for the Software Security course at the moment.

CourseraLectureVideoLinkCreator.js

// While logged in, go to https://class.coursera.org/softwaresec-001 and select a week under Weekly Content.
// Run this script in the dev console and it'll put links at the top of the page that you can right-click-save-as
var lectLink = $("a[href^='https://class.coursera.org/softwaresec-001/lecture/view?lecture_id=']"),
	  prefix = location.pathname.split(/.*\/wiki\//)[1],
	  vidLinkContainer = $("<div id='vidLinkContainer'/>");
$("#vidLinkContainer").remove();
$("body").prepend(vidLinkContainer);
lectLink.each(function(index) {
	var lectTitle = $(this).text(),
		  lectHref = $(this).attr("href");
		
	$.get(lectHref).then(function(response) {
		var vidSrc = $("source[type='video/mp4']", response).attr("src"),
		    downloadFileName = prefix+"_"+index+"_"+lectTitle.replace(" ", "_")+".mp4",
			  vidLink = $("<a></a>").attr({href: vidSrc, download: downloadFileName}).text(lectTitle);
		vidLinkContainer.append("<br />");
		vidLinkContainer.append(vidLink);
	});
});