The share of the Microsoft browser fell to a historic low — less than 60% — for the first time since Internet Explorer 4 overcame the Netscape siege in 1999.According to statistics
published by analysts from Net Applications, the share of Internet Explorer has dropped to 59.95%, falling from 80% in 2.5 years.

Under the cut some more statistics and a brief excursion into the history of WebKit
')
Of the lost 20%, about 9% took Firefox, which now occupies 25%. Nine more went in favor of WebKit-based browsers: 2.5 Safari (it reached 4.72%), while Chrome took 6.7% (from zero in 2009). Opera took up another percent over the same period (reaching 2.3%).
Statistics
published by StatCounter is even less joyful for Internet Explorer, which accounted for 56.57%, Firefox took 31.29%, followed by Chrome with 5.35%, 3.63% was taken by Safari and 2.25% by Opera.
Browser enginesFirefox Gecko, Oper Presto, Safari / Chrome WebKit - these engines are far ahead compared to the IE Trident, which does not support the latest web standards and did not make a breakthrough in JavaScript processing speed, like this made Safari, Chrome and Firefox. The next release of Internet Explorer promises to get support for the key features of HTML5, which will give him hope that the speed of the drop in share will decrease.
None of the browsers is now a commercial product, so vendors should have some other motives for their development. Microsoft created Internet Explorer to prevent Netscape from entering the market as an alternative to Windows in developing cross-platform applications.
When Netscape was
thrown out of the market, its developers decided to organize an open-source Mozilla project, the purpose of which was to continue developing an alternative, uncontrolled Microsoft browser. The development of Firefox quickly went ahead compared to the development of Internet Explorer, which Microsoft slowed down, reaching a monopoly position in the browser market in 2000.

In 2002, Apple “forked” KHTML to develop WebCore, a fast and harmonious
alternative to Firefox, Netscape’s legacy. WebCore served as the basis for the new Safari browser, which Apple released in 2003, and made available through open source. This gave Apple the opportunity to get its own top-level browser for the Mac (rather than relying on Microsoft or an independent open source project), as well as providing a high-quality, free engine that would help promote the use of open web standards.
Subsequently, in 2005, Apple announced that it would release the entire WebKit engine for open source, not just WebCore (the part responsible for page rendering, the successor to KHTML). Nokia immediately released a WebKit-based browser for its S60 platform. In 2007, Apple released Safari for Windows and a mobile version for iPhone and iPod touch.
In 2008, Google released Chrome, a WebKit-based browser. The proliferation of Android, Palm Pre, and the upcoming
BlackBerry OS 6 update, which includes WebKit browsers, suggests that Apple’s strategy has proven to be a good way to promote open web standards among mobile devices.
via
appleinsider.com