Examine source code of iCookie

{
  "manifest_version": 3,
  "name": "iCookie",
  "short_name": "iCookie",
  "version": "1.0.2",
  "author": "Imon Hasan",
  "description": "Modern, secure, fully offline Cookie Editor. View, add, edit, delete, import and export cookies with ease.",
  "browser_specific_settings": {
    "gecko": {
      "id": "icookie@imon.hasan",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "action": {
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    },
    "default_title": "iCookie",
    "default_popup": "popup/popup.html"
  },
  "permissions": [
    "cookies",
    "tabs",
    "activeTab"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "96": "icons/icon96.png",
    "128": "icons/icon128.png"
  }
}