The latest pre-release of Firefox 6, Aurora 6, brings back support for WebSockets. WebSockets is a protocol for providing two-way communications between the browser and the server. Mozilla dropped support for WebSockets last year due to security issues.
Other notable features in Aurora 6 include the progress element, window.matchMedia API, better APIs for binary data and Server-Sent Events. You can download it here.
A look at the progress element element.
Here’s a quick overview:
- Progress element: As seen above, this element can be used for displaying progress bars.
- Server Sent Events: A way for a server side script to generate client side events which include data.
Instead of bringing WebSockets into the mainstream browser, Microsoft offers plugins for developers who want to test unfinished specs.