Examine source code of TugaTech

{
  "name": "TugaTech",
  "description": "Aceda às notícias do TugaTech de forma simples e rápida",
  "background": {
    "page": "background.html"
  },
  "default_locale": "pt_PT",
  "browser_action": {
    "default_icon": "img/icon.png",
    "default_popup": "popup.html"
  },
  "icons": {
    "16": "img/icon-16.png",
    "48": "img/icon-48.png",
    "128": "img/icon-128.png"
  },
  "manifest_version": 2,
  "options_ui": {
    "page": "options.html",
    "browser_style": true
  },
  "permissions": [
    "tabs",
    "alarms",
    "notifications",
    "*://tugatech.com.pt/",
    "*://tugatech.com.pt/*",
    "*://rss.tugatech.com.pt/",
    "*://rss.tugatech.com.pt/*"
  ],
  "version": "5.2resigned1",
  "browser_specific_settings": {
    "gecko": {
      "id": "{cb5a7424-affa-4a83-a91c-13f3400f9dc5}"
    }
  }
}