Examine source code of Kill Grok

{
  "manifest_version": 3,
  "name": "KillGrok",
  "version": "1.0.0",
  "browser_specific_settings": {
    "gecko": {
      "id": "addon@killgrok.com",
      "strict_min_version": "58.0"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "https://x.com//*"
      ],
      "js": [
        "Content.js"
      ]
    }
  ]
}