A Firefox add-on that allows browsing of Coursera (see: https://www.coursera.org/) course offerings and information in a same-window side panel.
Basically, you won't have to leave the current page you are browsing, or open a new tab or window, just to see what Coursera has to offer!
Note: This add-on should be considered beta software, and may lack desired features or not always present data perfectly.
Disclaimer: This application is a 3rd party utilization of Coursera data, and is NOT officially affiliated with Coursera. As such, the add-on (or parts of it) can break and stop working without any advance notice if Coursera changes something substantial.