Examine source code of Prac Task Organizer

{
  "manifest_version": 2,
  "name": "Prac Task Organizer",
  "description": "Organiszes your daily task list.",
  "version": "1.0.1",
  "icons": {
    "128": "icon_128.png"
  },
  "browser_action": {
    "default_icon": "icon.png",
    "default_popup": "popup.html"
  },
  "permissions": [
    "activeTab"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{becc7707-48c9-40b9-bb50-41be5b4da03a}"
    }
  }
}