Mozilla Firefox是一个自由的,开放源码的浏览器,适用于Windows, Linux 和 MacOS X平台。它还有其它一些高级特征,如标签式浏览,可以禁止弹出式窗口.内置了钓鱼保护、改变标签浏览行为、能够重新打开以外关闭的标签、更好的支持网页订 阅的预览和订阅、拼写检查、支持JavaScript 1.7等.

v.3.5.4 Beta (Build 3), released October 20, 2009
What’s New in Firefox 3.5.4 Beta
Firefox 3.5.4 fixes several issues found in Firefox 3.5.3:
 

• Fixed several security issues.
• Fixed several stability issues.

Please see the complete list of changes in this version. You may also be interested in the Firefox 3.5.3 release notes for a list of changes in the previous version.