Examine source code of Cookie Crumbler

{
  "name": "Cookie Crumbler",
  "version": "1.1",
  "manifest_version": 3,
  "description": "Get rid of cookie banners. Automatically hide and reject cookie banners on websites.",
  "icons": {
    "16": "icon-16.png",
    "48": "icon-48.png",
    "128": "icon-128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "style.css"
      ],
      "run_at": "document_start"
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "onpage-script.js"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "cookie-crumbler@ihatecookiebanners.com"
    }
  }
}