Examine source code of Facebook Status

{
  "name": "Facebook Status",
  "version": "1.2.8",
  "manifest_version": 2,
  "description": "Shows your Facebook status (New Friend Requests and Notifications) on a toolbar. No need to keep site open all the time.",
  "developer": {
    "name": "RunninglVlan",
    "url": "https://github.com/RunninglVlan"
  },
  "icons": {
    "64": "img/icon64.png",
    "128": "img/icon128.png"
  },
  "browser_action": {
    "default_icon": {
      "16": "img/browserAction/default16.png",
      "19": "img/browserAction/default19.png",
      "32": "img/browserAction/default32.png",
      "38": "img/browserAction/default38.png"
    },
    "default_title": "Facebook Status"
  },
  "background": {
    "scripts": [
      "js/Statuses.js",
      "js/Parser.js",
      "js/IconUpdater.js",
      "js/Fetcher.js",
      "js/Presenter.js",
      "background.js"
    ]
  },
  "permissions": [
    "*://m.facebook.com/*",
    "tabs"
  ]
}