Control Coursera progress.
This extension allows you to finally take control over your Coursera progress. It adds an empty (gray) checkmark next to all lecture videos and lets you check/uncheck each lecture to mark them watched/unwatched.
Data for each course is kept separately and will be automatically synced across different browsers as long as you sign in to Chrome.
Managing quiz and assignment progress is also supported.
Source available on github if you feel like contributing:
Icons courtesy of http://www.everaldo.com/ distributed under the LGPL.