You can do that with Prism. #[prism](http://packages.ubuntu.com/prism) [![Install prism](http://bit.ly/software-large)](http://apt.ubuntu.com/p/prism) You can create your chat app by launching Prism from the Internet menu, or directly from Firefox via [Prism extension][1]. If you are using the extension, visit the chat you want or the main chat page, then click "Tools >> Convert Web Site to Application" in Firefox menu. ![Prism Web App creation tool][2] Desktop icon: ![alt text][3] Interface: ![alt text][4] [1]: https://addons.mozilla.org/en-US/firefox/addon/6665/ [2]: https://i.sstatic.net/Z0Z2N.png [3]: https://i.sstatic.net/eCHge.png [4]: https://i.sstatic.net/acVOS.png