Examine source code of Viva Auto-Refresh

{
  "manifest_version": 2,
  "name": "Viva Auto-Refresh",
  "version": "1.0.0",
  "description": "Automatically refreshes Viva pages to maintain session with configurable timeout",
  "browser_specific_settings": {
    "gecko": {
      "id": "viva-auto-refresh@vivapayments.extension"
    }
  },
  "permissions": [
    "activeTab",
    "storage",
    "*://*.vivapayments.com/*",
    "*://*.viva.com/*",
    "*://vivapayments.com/*",
    "*://viva.com/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*.vivapayments.com/*",
        "*://*.viva.com/*",
        "*://vivapayments.com/*",
        "*://viva.com/*"
      ],
      "js": [
        "scripts/remove-timeouts.js"
      ],
      "run_at": "document_start"
    }
  ],
  "background": {
    "scripts": [
      "background/background.js"
    ],
    "persistent": false
  },
  "browser_action": {
    "default_popup": "popup/popup.html",
    "default_title": "Viva Auto-Refresh Settings"
  },
  "web_accessible_resources": [
    "scripts/remove-timeouts.js"
  ],
  "content_security_policy": "script-src 'self'; object-src 'self'"
}