A Web browsing system including a cloud browser system, an image generation server and an image forming apparatus, the Web browsing system includes one or more memories and one or more processors. The one or more processors and the one or more memories are configured to create a tunnel between the image forming apparatus and the image generation server in such a manner that the image generation server is able to perform communication via a virtual proxy provided by the image forming apparatus, and download, to the image generation server, the Web content from a Web server via the tunnel and provide a result of rendering based on the Web content from the image generation server to the image forming apparatus.