Examine source code of Flag Cookies

{
  "developer": {
    "name": "Jan Riechers",
    "url": "https://www.dwrox.net"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{d8d0bc2b-45c2-404d-bb00-ce54305fc39c}"
    }
  },
  "default_locale": "en",
  "action": {
    "default_title": "FlagCookies",
    "default_popup": "cookies.html",
    "default_icon": {
      "48": "icons/flagcookies_icon.svg",
      "64": "icons/flagcookies_icon.svg",
      "96": "icons/flagcookies_icon.svg",
      "128": "icons/flagcookies_icon.svg"
    }
  },
  "description": "__MSG_AddonDescription__",
  "icons": {
    "48": "icons/flagcookies_icon.svg",
    "64": "icons/flagcookies_icon.svg",
    "96": "icons/flagcookies_icon.svg",
    "128": "icons/flagcookies_icon.svg"
  },
  "homepage_url": "https://github.com/jrie/flagCookies",
  "manifest_version": 3,
  "name": "Flag Cookies",
  "version": "3.6.7",
  "permissions": [
    "cookies",
    "tabs",
    "webRequest",
    "storage",
    "unlimitedStorage",
    "clipboardWrite",
    "notifications",
    "contextualIdentities",
    "webNavigation"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "cookies.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_start"
    }
  ]
}