Examine source code of AECOM Student Extension

{
  "name": "AECOM Student Extension",
  "description": "AECOM Student Extension",
  "version": "2.13",
  "manifest_version": 3,
  "action": {
    "default_popup": "popup.html",
    "default_title": "AECOM Student Extension",
    "default_icon": {
      "38": "icons/icon128.png",
      "128": "icons/icon128.png"
    }
  },
  "icons": {
    "128": "icons/icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "hater69@420haters.gonnahate"
    }
  }
}