Microsoft's tight grip on the Internet browser market is rapidly slipping. According to WebSideStory, an independent Internet traffic site, as of April 2005, Internet Explorer use has fallen below 90 percent of the market in the United States and as low as 69 percent in Germany.

What's making people leave IE are the numerous security concerns and the simple fact that functionality (tabbed browsing and a built-in Really Simple Syndication [RSS] feed reader) promised in version 7 of Internet Explorer, expected to be in beta late this summer, is already available in other browsers. Add to that Microsoft's controversial decision to offer the next version of Internet Explorer only to people running Windows XP SP2, and you see why those running older versions of Windows are starting to look elsewhere. Rapidly forcing IE from desktop dominance is Mozilla Firefox. This open-source browser receives our highest rating, in part because it includes tabbed browsing and RSS feeds, is very easy to use and is well supported with a variety of third-party plug-ins. Firefox's popularity has recently helped unearth a few vulnerabilities, but we've been impressed with the speed and forthrightness with which Mozilla has patched its browser. In short, we just don't feel as vulnerable surfing the Web with Firefox. Netscape 8 takes the best of both worlds. It runs both IE and Mozilla's engines, should sites you want to visit render properly only with IE. Netscape 8 also includes tabbed browsing, and it's easy to use. Another browser actually built upon the Microsoft IE engine is Deepnet Explorer. Think of Deepnet Explorer as Internet Explorer the way you'd like it to be -- today. Two unique browsers are also available. One is Apple's Safari RSS, designed to run on the Mac OS X operating system. Bundled with Mac OS X Tiger (and available for download for previous Mac OS X users), Safari offers tabbed browsing, an RSS reader, and increased speed for Mac users who are fed up with IE for Mac. Finally, there's Opera, which uses neither the IE nor the Mozilla engine. We like many of the cool new features introduced in Opera 8, such as its ability to stretch and resize Web pages to fit your desktop needs without sacrificing content. And now (as of 20 September 2005) that you no longer need to pay $39 (~£20) or put up with an endless stream of banner advertising on the free version, the value proposition for Opera 8 greatly enhanced.

Web browsers compared
	Deepnet Explorer	Internet Explorer 6	Mozilla Firefox	Netscape 8	Opera 8	Safari RSS
Editors' rating	7.0	7.0	8.0	7.7	8.0	7.7
Price	free	free	free	free	free	free
OS	Windows (98 through XP)	Windows XP (SP2 only)	Windows, Linux, Mac OS	Windows (98 through XP)	Windows, Linux, Mac OS, Solaris	Mac OS 10.x
Tabbed browsing	yes	no	yes	yes	yes	yes
RSS integration	yes	no	yes	yes	yes	yes
Built-in anti-spyware	no	no	no	yes	no	no
Pop-up blocker	yes	yes	yes	yes	yes	yes