Examine source code of Uptime to Date

{
  "manifest_version": 2,
  "name": "Uptime to Date",
  "description": "This extension is to convert uptime to a date.",
  "version": "1.8resigned1",
  "browser_action": {
    "default_icon": "icon.png",
    "default_popup": "uptimeCalc.html",
    "default_title": "UptimeDateTool"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{f863ca17-0f69-4f0b-a93f-6c8a3359db1f}"
    }
  }
}