Mozilla Releases Firefox 3.5 beta

Mozilla released beta 3.5 of Firefox that includes better performance, several new Web programming features, and a private browsing mode. Mozilla switched to the version 3.5 name after concluding the changes were more significant than it envisioned earlier. Mozilla has said earlier the fourth beta will the last, with more polished release candidates expected before the final version of Firefox 3.5 is released.

Among the changes compared with the current Firefox 3.0.x versions are the faster TraceMonkey engine for running Web sites' JavaScript programs; built-in JSON (JavaScript Object Notation) technology for exchanging data between servers and browsers; support for tags to describe audio and video content the way images have been available for years; the private browsing mode for leaving no traces on your computer while surfing; support for technology to let permitted applications know the user's location; and support for the Web workers standard for letting a browser perform processing in the background without holding back a Web application's user interface.