Examine source code of H1BFriendly

{
  "manifest_version": 3,
  "name": "H1BFriendly",
  "version": "2.6",
  "description": "Checks if company is H1B friendly",
  "icons": {
    "32": "icons/jobs32.png",
    "96": "icons/jobs96.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.linkedin.com/jobs*"
      ],
      "js": [
        "./sponsor.js"
      ]
    }
  ],
  "permissions": [
    "activeTab",
    "tabs",
    "find"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{475c3f8e-bede-47d5-a205-f11b214aa7a9}"
    }
  }
}