In the beginning, there was Netscape and its Navigator ? perhaps not exactly the beginning, but close enough. Then came Microsoft and Internet Explorer, launching the first browser war, and eventually, the death of Netscape and a massive anti-trust trial for Microsoft. IE has retained the market dominance it gained by Netscape's downfall to the present day.
There are challenges to the market leader, however ? serious challengers, particularly Mozilla's Firefox, which has steadily gained against IE over the past five years. Like the mythical son who avenges his father, Firefox ? a descendant of the Netscape codebase ? appears to have finally won at least a symbolic victory, as Firefox 3.5 has overtaken Internet Explorer 7 as the world's most popular browser.