Examine source code of TENDIO Browser Bridge

{
  "manifest_version": 3,
  "name": "TENDIO Browser Bridge",
  "version": "1.6.3",
  "description": "Łączy portal w zwykłej przeglądarce i automatycznie przekazuje dokumenty do TENDIO ONE.",
  "homepage_url": "https://tendio.one/browser-bridge/privacy",
  "action": {
    "default_title": "TENDIO — automatyczne dokumenty",
    "default_popup": "popup-tendio.html"
  },
  "permissions": [
    "activeTab",
    "scripting",
    "storage"
  ],
  "host_permissions": [
    "https://tendio.one/*",
    "https://www.tendio.one/*",
    "https://platformazakupowa.pl/*",
    "https://*.platformazakupowa.pl/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://tendio.one/*",
        "https://www.tendio.one/*"
      ],
      "js": [
        "content-tendio.js"
      ],
      "run_at": "document_start"
    },
    {
      "matches": [
        "https://platformazakupowa.pl/*",
        "https://*.platformazakupowa.pl/*"
      ],
      "js": [
        "content-platform-auth.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "tendio-browser-bridge@tendio.one",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "websiteActivity",
          "websiteContent"
        ]
      }
    }
  }
}