Mozilla Labs released a tool called Prism (formerly called Webrunner) that runs Web applications directly from the desktop, without requiring a Web browser.
According to Mozilla's official description, "Prism is an application that lets users split Web applications out of their browser and run them directly on their desktop." Instead of needing to boot up a browser to access Web-based apps, a simple icon can be clicked on a desktop. The icon would pull up the application inside of a Prism window providing the user with access without the additional browser bloat.
A Windows version of Prism is available here, while a Mac and Linux version are in the pipeline.
Users can place icons for their favorite sites directly on the desktop (such as Gmail and Facebook) , and Prism will run them. Prism competes with similar, more feature-packed services, such as Adobe Interactive Runtime and Microsoft's Silverlight.
It is debatable whether the Prism represents a major shift in user experience since it's a stripped-down version of a browser. But this is just the beginning stage. The main point is that Prism represents an open platform that's based on Firefox, where any application that works on a standard browser (TechNewsWorld) can be executed.