Browsers as 'Application Platforms'

Internet Explorer morphs into Office Word and Excel never really made it on the Web, but Office seems to be growing deeper ties with HTML and XML.
XML grafted onto IE for now, visions of .NET Although the XML parser is a product of the Internet Explorer team, XML seems to be finding more and more use throughout Microsoft and the visions of its management.
Mozilla as 'application platform', not 'browser' As Mozilla's creators took flak from browser-oriented Web developers for being too slow to market, the description of the project shifted from 'open source Web browser' to 'open source Web application platform.'
XML deep in the workings of Mozilla XML is everywhere inside Mozilla, used as a foundation for the entire project. Effectively, the browser uses its support for displaying and scripting XML to create the entire browser interface.