Examine source code of So0ow Extension

{
  "manifest_version": 2,
  "name": "So0ow Extension",
  "version": "2.1",
  "description": "Soyez notifié lorsque So0ow sera en live !",
  "browser_action": {
    "default_popup": "index.html"
  },
  "icons": {
    "12": "img/icone.png",
    "32": "img/icone.png",
    "48": "img/icone.png",
    "128": "img/icone.png"
  },
  "background": {
    "scripts": [
      "back.js",
      "config.js"
    ]
  },
  "permissions": [
    "tabs",
    "storage",
    "notifications",
    "activeTab"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{a058a065-8c8a-4cc4-9bed-26006f5f9529}"
    }
  }
}