Examine source code of Block Cookies

{
  "manifest_version": 3,
  "name": "Block Cookies",
  "version": "1.6",
  "description": "FireFox extension that block cookies popup",
  "icons": {
    "512": "images/icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "szymon.nikitin@gmail.com",
      "strict_min_version": "48.0"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "styles.css"
      ]
    }
  ]
}