Examine source code of WiFi Password Show

{
  "name": "WiFi Password Show",
  "version": "4.0.3",
  "manifest_version": 2,
  "description": "Best wifi analyzer way to secure your wifi",
  "browser_action": {
    "default_icon": "icon.png",
    "default_title": "WiFi Password",
    "default_popup": "extension.html"
  },
  "icons": {
    "128": "icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{fccb974a-f26b-4e78-916d-1c7d60b8d50a}"
    }
  }
}