Examine source code of Courseware Enhancer

{
  "manifest_version": 2,
  "name": "Courseware Enhancer",
  "version": "1.2",
  "description": "Improves the user experience when using the MOOCs on courseware.epfl.ch (very specific extension)",
  "icons": {
    "48": "icons/courseware-enhancer-48.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://courseware.epfl.ch/*"
      ],
      "js": [
        "courseware-enhancer.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "contact@mael.im"
    }
  }
}