Examine source code of PassSecurium

{
  "manifest_version": 3,
  "name": "__MSG_appName__",
  "version": "3.3.3",
  "description": "__MSG_appDesc__",
  "default_locale": "en",
  "author": "ALPEIN Software SWISS AG",
  "homepage_url": "https://www.pass-securium.ch/",
  "icons": {
    "16": "icons/ps-icon-16.png",
    "48": "icons/ps-icon-48.png",
    "128": "icons/ps-icon-128.png"
  },
  "content_scripts": [
    {
      "all_frames": true,
      "js": [
        "assets/browser-polyfill.min.js",
        "autofill.js",
        "formCollection.js",
        "content.js"
      ],
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "run_at": "document_start"
    }
  ],
  "background": {
    "service_worker": "background.js",
    "scripts": [
      "background.js"
    ]
  },
  "action": {
    "default_icon": {
      "16": "icons/ps-icon-16.png",
      "48": "icons/ps-icon-48.png",
      "128": "icons/ps-icon-128.png"
    },
    "default_title": "PassSecurium",
    "default_popup": "popup/popup.html"
  },
  "permissions": [
    "identity",
    "tabs",
    "storage",
    "scripting",
    "alarms"
  ],
  "host_permissions": [
    "http://*/*",
    "https://*/*"
  ],
  "options_ui": {
    "page": "options/options.html",
    "open_in_tab": true
  },
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'; frame-src 'self';"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "external/external.html"
      ],
      "matches": [
        "http://*/*",
        "https://*/*"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{5d479542-d78c-4997-b85a-1485769535cd}",
      "strict_min_version": "115.0"
    }
  }
}