Examine source code of Reload all open tabs

{
  "manifest_version": 2,
  "name": "Reload all tabs",
  "version": "1.0",
  "description": "Reload all tabs",
  "icons": {
    "48": "images/icon48.png",
    "128": "images/icon128.png"
  },
  "permissions": [
    "tabs"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "browser_action": {
    "48": "images/icon48.png",
    "default_title": "Reload all tabs"
  },
  "browser_specific_settings": {
    "gecko": {
      "data_collection_permissions": {
        "collectsTelemetry": false,
        "required": [
          "none"
        ]
      },
      "id": "secretairegeneralaalenice@gmail.com"
    }
  }
}