Browser wars
A browser war is a competition for dominance in the usage share of web browsers. The "first browser war," (1995–2001) pitted Microsoft's Internet Explorer against Netscape's Navigator. Browser wars continued with the decline of Internet Explorer's market share and the popularity of other browsers including Firefox, Google Chrome (and other Chromium-based browsers), Safari, Microsoft Edge and Opera.
With the introduction of HTML5 and CSS 3, a new generation of browser war began, this time adding extensive client-side scripting to the World Wide Web, as well as the more widespread use of smartphones and other mobile devices for browsing the web. These newcomers have ensured that browser battles continue among enthusiasts, whilst the average web user is less affected.