Examine source code of Quick Notes

{
  "manifest_version": 2,
  "name": "Quick Notes",
  "version": "1.0",
  "description": "Ghi chú nhanh ngay trong trình duyệt.",
  "permissions": [
    "storage"
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_title": "Quick Notes"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{309ea51f-35c5-4939-85c4-21603c8053cf}"
    }
  }
}