Examine source code of Accel-Title

{
  "manifest_version": 2,
  "name": "Accel's Update",
  "version": "1.0",
  "description": "Alterar o título da guia com o nome do servidor atual",
  "permissions": [
    "tabs",
    "webRequest",
    "webRequestBlocking",
    "<all_urls>",
    "activeTab",
    "storage",
    "http://*/*",
    "https://*/*",
    "chrome://favicon/"
  ],
  "icons": {
    "16": "icon16.png",
    "32": "icon16.png",
    "48": "icon16.png",
    "128": "icon16.png"
  },
  "background": {
    "sc": "background.html",
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_icon": "icon16.png",
    "default_title": "Titulos dos Servidores Accel's"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{7feb5d62-fcc1-4d34-b347-366e0bc7e0e1}"
    }
  }
}