Examine source code of Cookie Editor Pro

{
  "manifest_version": 3,
  "name": "Cookie Editor Pro",
  "version": "2.2.0",
  "description": "A powerful cookie manager for Firefox.",
  "permissions": [
    "cookies",
    "tabs",
    "storage"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "action": {
    "default_title": "Cookie Editor Pro",
    "default_popup": "popup/popup.html"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "cookie-editor-pro@example.com",
      "strict_min_version": "120.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}