One of the features of Internet Explorer 8 (IE8) is built-in Developer Tools, and one of those tools is the ability to emulate Internet Explorer 7 (IE7). This would ostensibly make life easier for the developer. In fact, in development experience at Trinity such has not proven to be the case.

Browser compatibility, or the ability of a web site/application to work in multiple browsers, is a concern for every web developer. Recent statistics show that five web browsers hold significant market share. The leaders in that report (in order from greatest to least) are Firefox, Internet Explorer 7, Internet Explorer 8, Internet Explorer 6, and Chrome.