The earlier betas had been numbered 3.1, but 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 be the last, with more polished release candidates expected before the final version of Firefox 3.5 is released. You can download Firefox 3.5 beta 4 from CNET Download.com for Windows and Mac.
The software emerges amid what has become a fiercely competitive browser market. Microsoft has released a significant new version, Internet Explorer 8, while Google has entered the market with Chrome, and Apple is trying to secure a Windows foothold for its Safari browser. Firefox holds second place in market share to IE.
Among the changes compared with the current Firefox 3.0.x versions are:
- Support for tags to describe audio and video content the way images have been available for years
- Private-browsing mode for leaving no traces on your computer while surfing
- Support for technology to let permitted applications know the user's location
- Support for the web workers standard for letting a browser perform processing in the background without holding back a web application's user interface
With this beta, there are a number of known problems with Gmail and with AVG SafeSearch v8.0 on Windows, and of course many of those extensions that are so popular on Firefox could break. For details, check the release notes.
This article was originally posted on CNET News.