Facebook time tracker

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Facebook time tracker",
  "description": "Track the used time of Facebook pages. Then prevent user to use more after the time is over",
  "version": "0.2",
  "permissions": [
    "activeTab",
    "tabs",
    "storage",
    "https://www.facebook.com/",
    "https://facebook.com/",
    "http://www.facebook.com/",
    "http://facebook.com/"
  ],
  "icons": {
    "16": "facebook.time.tracker/images/facebook-timer-16.png",
    "48": "facebook.time.tracker/images/facebook-timer-48.png",
    "128": "facebook.time.tracker/images/facebook-timer-128.png"
  },
  "content_scripts": [
    {
      "js": [
        "facebook.time.tracker/injectScript.min.js"
      ],
      "matches": [
        "http://facebook.com/",
        "http://www.facebook.com/",
        "https://facebook.com/",
        "https://www.facebook.com/"
      ]
    }
  ],
  "options_page": "facebook.time.tracker/pages/options.html",
  "browser_action": {
    "default_icon": {
      "19": "facebook.time.tracker/images/facebook-timer-19.png",
      "38": "facebook.time.tracker/images/facebook-timer-38.png"
    },
    "default_title": "Facebook time tracker"
  },
  "background": {
    "scripts": [
      "facebook.time.tracker/js/background.min.js"
    ],
    "persistent": false
  },
  "web_accessible_resources": [
    "*.js"
  ]
}