The cubbles-webinspector extension allows inspecting Cubbles components located within a webpage. The extension allows you to list the Cubbles (if any) of the inspected webpage. Also, a list of slots is presented with their related information such as type, value and description. Additionally, the value of a slot can be updated. Furthermore, the extension can be used to visualize the interface (and dataflow) of all the root Cubbles components and the connections between them (if any). Additionally, the root dependencies tress can be visualized too. To access this extension, the desired webpage or Cubbles component should be inspected (https://developers.google.com/web/tools/chrome-devtools/).