Examine source code of Reload All Tabs by Nir

{
  "manifest_version": 2,
  "name": "Reload All Tabs",
  "version": "1.2",
  "description": "Reloads all tabs in the current window via toolbar icon or Ctrl+Alt+R.",
  "permissions": [
    "tabs",
    "windows",
    "commands"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_icon": {
      "48": "icon.png"
    },
    "default_title": "Reload All Tabs"
  },
  "commands": {
    "reload-all-tabs": {
      "suggested_key": {
        "default": "Ctrl+Alt+R"
      },
      "description": "Reload all tabs in the current window"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{e104ef8b-223f-4852-86f6-a255d2c475bb}"
    }
  }
}