Examine source code of ZipTab

{
  "manifest_version": 2,
  "name": "ZipTab",
  "version": "0.25",
  "description": "a work in progress",
  "icons": {
    "16": "images/blueSmiley16.png",
    "32": "images/blueSmiley32.png",
    "48": "images/blueSmiley48.png",
    "128": "images/blueSmiley128.png"
  },
  "permissions": [
    "tabs",
    "storage",
    "activeTab"
  ],
  "browser_action": {
    "default_icon": "images/blueSmiley32.png",
    "default_title": "ZipTab",
    "default_popup": "popup.html"
  },
  "applications": {
    "gecko": {
      "id": "cansWithTheLads@chef.net"
    }
  },
  "commands": {
    "_execute_browser_action": {
      "suggested_key": {
        "default": "Ctrl+Shift+Q",
        "mac": "MacCtrl+Shift+Q"
      },
      "description": "Shows the goods"
    }
  }
}