Examine source code of Facebook fbclid Fixer

{
  "manifest_version": 2,
  "name": "fbclid-fixed",
  "version": "1.1",
  "description": "Fixes the Facebook fbclid param from outbound links by removing it.",
  "icons": {
    "48": "icons/logo-48.png",
    "96": "icons/logo-96.png"
  },
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "fbclid-fixer.js"
    ]
  },
  "applications": {
    "gecko": {
      "id": "fbclid-fixer@andreimaxim.ro"
    }
  }
}