Shows the number of days since the last commit next to a link to a github repository. Only activates on github.com.
Have you ever been on an "Awesome XYZ" list on Github only to find out after you followed a repository link, that the last commit was ages ago? This extension adds a little indicator which shows the number of days when the last commit occurred. It's also open source (see derhackler/githubactivityindicator on Github).