Examine source code of Feedcrunch.IO

{
  "name": "Feedcrunch.IO",
  "short_name": "Feedcrunch",
  "author": "Jonathan DEKHTIAR",
  "manifest_version": 2,
  "version": "1.0.15resigned1",
  "description": "Feedcrunch.IO - Chrome Extension",
  "icons": {
    "19": "img/icon.png",
    "48": "img/iconLauncher.png",
    "128": "img/iconStore.png"
  },
  "background": {
    "scripts": [
      "app/background.js"
    ],
    "persistent": true
  },
  "browser_action": {
    "default_icon": "img/icon.png"
  },
  "content_scripts": [
    {
      "js": [
        "app/content_scripts.js"
      ],
      "matches": [
        "http://*/*",
        "https://*/*"
      ]
    }
  ],
  "web_accessible_resources": [
    "templates/*.html"
  ],
  "permissions": [
    "activeTab",
    "contextMenus",
    "cookies",
    "management",
    "storage",
    "tabs",
    "http://*/*",
    "https://*/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{ef87943d-352a-4412-b60c-c8ffafb6f34a}"
    }
  }
}