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Microsoft's IE browser loses its majority, falls under 50 percent user share

Gregg Keizer | Jan. 6, 2016
Slide continues as the once-dominant browser slips to 48.6 percent, with Google's Chrome poised to take the No. 1 spot in October.

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Microsoft's venerable Internet Explorer browser lost its majority position last month, according to a Web metrics vendor, falling under the 50% bar for the first time since it thrashed Netscape Navigator and assumed control of the browser market.

By the estimates of Irvine, Calif.-based Net Applications, Internet Explorer (IE) ended 2015 with a user share -- a measurement of unique visitors to the websites of the company's clients, and one of the few proxies for real-world browser adoption -- of 48.6%. That was a drop of 1.5 percentage points from November, the largest one-month contraction in IE's share since October 2011.

At one point, IE held a user share as large as 89.4% in Net Applications' tracking. That was in January 2005, when Computerworld began recording the firm's metrics.

IE's share had been even higher earlier in the decade, after it had forced Netscape out of the market in the early 2000s, and before Mozilla took up Netscape's mantle with Firefox in 2004. Firefox was the first browser to challenge IE's dominance of the browser space, and was widely adopted by those who viewed the then-IE6 as stuck in the past.

Microsoft responded to the threat from Firefox with a series of improved browsers -- IE7 in 2006 for Windows Vista's launch, IE8 in 2009 preceding the debut of Windows 7, and others -- but its user share decline continued. IE flirted with falling below the 50% mark in late 2011; in October of that year, it posted a user share of 51.9%. But the browser recovered some of that lost share, scratching its way to 58.9% in November 2014.

Since then, however, it's been all downhill for IE.

ie vs chrome past year 
Internet Explorer's No. 1 ranking is threatened by Chrome, which could grab the top spot as early as October 2016 if the last year's trend continues. Click on image to enlarge. Credit: Net Applications 

The biggest factor in IE latest contraction was Microsoft's abrupt decision in August 2014 to require most users to upgrade to 2013's IE11. By demanding that users upgrade from, say, IE8 to IE11, Microsoft motivated customers to download and run a rival browser, since people had to change in any case.

The mandate was disastrous for IE: In the last 12 months, it shed 10.5 percentage points of user share, an amount representing an 18% shrinkage.

The biggest beneficiary of IE's decline has been Google's Chrome, which during the past year has added 9.7 percentage points to its tally, ending December with a user share of 32.3%.

 

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