Examine source code of Moodle Setter for ETH

{
  "manifest_version": 2,
  "name": "Moodle Setter for ETH",
  "version": "1.0",
  "description": "Sets the organization to \"ETH\" on all moodle login sites.",
  "browser_specific_settings": {
    "gecko": {
      "id": "lfent@ethz.ch"
    }
  },
  "icons": {
    "48": "icons/border-48.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://moodle-app2.let.ethz.ch/auth/shibboleth/login.php"
      ],
      "js": [
        "moodle_login.js"
      ]
    }
  ]
}