Examine source code of Kind Language Filter

{
  "manifest_version": 2,
  "name": "Kind Language Filter",
  "description": "The extension helps you replace harsh words with friendly alternatives and add playful Vong-style language for a more positive browsing experience!",
  "version": "1.5",
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "konvertasation.js"
      ],
      "run_at": "document_end"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{d81cb912-f853-4eea-84a8-43d34e945c71}"
    }
  }
}