Examine source code of Bottleneck Calculator

{
  "manifest_version": 2,
  "name": "PC Bottleneck Calculator",
  "version": "1.0",
  "description": "Calculate potential bottlenecks in your PC configuration",
  "icons": {
    "48": "icon48.png",
    "96": "icon96.png"
  },
  "browser_action": {
    "default_icon": "icon48.png",
    "default_title": "PC Bottleneck Calculator",
    "default_popup": "popup.html"
  },
  "permissions": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "{28d4f5e0-8084-47dd-96c0-9509746334fc}"
    }
  }
}