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,它体积小速度快，还有其它一些高级特征,主要特性有:标签式浏览,使上网冲浪更快;可以禁止弹出式窗口;自定制工具栏;扩展管理;更好的搜索特 性;快速而方便的侧栏.这个版本做了脱胎换骨的更新,代码更优秀,功能更强大,包括安装程序,界面和下载管理器都作了改进。下载:Mozilla Firefox 3.1 Beta 2

Firefox 3.1: Support for text attributes and spell checking
Marco Zehe writes, “Friday’s nightly build will include one big new feature in accessibility for Firefox 3.1: Text attributes and spell checking support.” This means that assistive technologies will now be able to get information about the font-family, font-weight, underline style, style, color, and background color of text, and also the language that the text is in, among other things. Additionally, when editing, if a word is misspelled, that word will now include an “invalid:misspelling” attribute. These new features will be fine-tuned over the next few weeks, but the team is looking for feedback if you’re able to help. For more details, please see Marco’s weblog post.