Examine source code of RSS Feed Detector

{
  "manifest_version": 2,
  "name": "RSS Feed Detector",
  "version": "1.0",
  "description": "Detects RSS feeds on the current page and allows subscription.",
  "icons": {
    "48": "icon.png"
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": "icon.png",
    "default_title": "RSS Feed Detector"
  },
  "permissions": [
    "activeTab",
    "tabs"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c9e47a86-0cbe-4628-8abc-3171bcb7f14d}"
    }
  }
}