Examine source code of AymSSJ Live Extension

{
  "name": "AymSSJ Live Extension",
  "description": "Soit notifié dès que je suis en live !",
  "version": "1.0.5",
  "manifest_version": 2,
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_icon": "/images/icon_32.png",
    "default_title": "AymSSJ popup",
    "default_popup": "popup.html"
  },
  "icons": {
    "16": "/images/icon_16.png",
    "32": "/images/icon_32.png",
    "48": "/images/icon_48.png",
    "128": "/images/icon_128.png"
  },
  "permissions": [
    "alarms",
    "notifications",
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{0867be73-1039-4cc7-b84b-bec9e6ec54f9}"
    }
  }
}