Opera为来自挪威的一个极为出色的浏览器,具有速度快、节省系统资源、订制能力强、安全性高以及体积小等特点,目前已经是最受欢迎的浏览器之一.多文件接口(MDI)、方便的缩放功能、整合搜索引擎、键盘截径与鼠标浏览功能、当机时下次可以从上次浏览进度开始、防止pop-up、 Fullscreen、对HTML标准的支持、整合电子邮件与新闻群组以及让使用者自订接口按钮、skin、工具列等的排列方式,都是Opera多年来备受喜爱的特殊功能.下载:Opera v9.50 Build 9864 Beta

对于对互联网技术有进一步研究的用户,Opera也是一个不可多得的好工具,包括HTML的标准验证、支持WML(WAP)、可以创建关连窗口、显示窗口尺寸等功能,对于设计网页的工作者助益很大。而Opera精心为视障用户设计的一系列功能,也是一个特点。另外值得一提的是,Opera除了在 Windows外,也支持Linux、Mac等桌面操作系统,值得拭目以待。另外在欧美推出的Nokia 9210i当中,也内建的Opera在Symbian操作系统的浏览器,足见Opera在浏览器技术的实力。

Known issues:
• Opening Help will cause Opera to crash.
• Save As for a web page only lets you save as "HTML file" on Windows.
• The progress bar does not show if it's set to "Pop-up at the bottom".
• On OS X, scrolling to the bottom of a page with the scrollbars does not work.

Changelog:
• Several download fixes
• "Open With" other browsers now works.
• Fixed funky parsing problems on YouTube.
• All downloads and saved content (except web pages) are now put in the transfer window for easier access
• Viewing source should now work properly with applications that need a file extension to work
• UNIX: Fixed a Flash crash
• UNIX: Made the mplayer plug-in draw itself in the correct size again
• UNIX and Mac: Fixed various command line bugs
• Calling substr with negative length now returns an empty string
• Array indexOf now treats a non-numeric second parameter as 0
• Mail: Fixed problems expunging or moving messages on certain servers
• Mail: Fixed issue where the "Contacting Folder" status message displayed the wrong count
• ACID3: Zero bytes in encodeURIComponent and encodeURI are now handled correctly
• ACID3: Unicode escapes can no longer be used to put non-identifier characters into identifiers