Examine source code of QSign Desktop

{
  "manifest_version": 2,
  "name": "QSign Desktop",
  "version": "1.0.1",
  "description": "QSign Desktop extension pre portály verejnej správy",
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "page_action": {
    "default_title": "QSign Desktop",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    },
    "show_matches": [
      "https://www.slovensko.sk/*",
      "https://schranka.slovensko.sk/*",
      "https://pfseform.financnasprava.sk/*",
      "https://www.financnasprava.sk/*",
      "https://cep.financnasprava.sk/*",
      "https://www.cep.financnasprava.sk/*",
      "https://eformulare.socpoist.sk/*",
      "https://sluzby.orsr.sk/*",
      "https://obcan.justice.sk/*",
      "https://esluzby.bratislava.sk/*"
    ]
  },
  "permissions": [
    "storage"
  ],
  "background": {
    "scripts": [
      "background.bundle.js"
    ],
    "persistent": false
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.slovensko.sk/*",
        "https://schranka.slovensko.sk/*",
        "https://pfseform.financnasprava.sk/*",
        "https://www.financnasprava.sk/*",
        "https://cep.financnasprava.sk/*",
        "https://www.cep.financnasprava.sk/*",
        "https://eformulare.socpoist.sk/*",
        "https://sluzby.orsr.sk/*",
        "https://obcan.justice.sk/*",
        "https://esluzby.bratislava.sk/*"
      ],
      "js": [
        "content.bundle.js"
      ],
      "run_at": "document_start",
      "all_frames": true
    }
  ],
  "web_accessible_resources": [
    "icons/*",
    "inject.bundle.js"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "qsign@ardaco.com"
    }
  }
}