Microsoft Edge, officially unveiled on January 21, 2015, has replaced Internet Explorer as the default browser on Windows 10.Internet Explorer is still installed in Windows 10 in order to maintain compatibility with older websites and intranet sites that require Active X and other Microsoft legacy web technologies.
Microsoft submitted several other features of IE for consideration by the W3C for standardization.Internet Explorer caches visited content in the Temporary Internet Files folder to allow quicker access (or offline access) to previously visited pages.The content is indexed in a database file, known as Internet Explorer was criticised by Tim Berners-Lee for its limited support for SVG, which is promoted by W3C.Internet Explorer has introduced an array of proprietary extensions to many of the standards, including HTML, CSS, and the DOM.Internet Explorer uses DOCTYPE sniffing to choose between standards mode and a "quirks mode" in which it deliberately mimicks nonstandard behaviours of old versions of MSIE for HTML and CSS rendering on screen (Internet Explorer always uses standards mode for printing).
It also provides its own dialect of ECMAScript called JScript.
According to Microsoft, development of new features for Internet Explorer has ceased.
However, it will continue to be maintained as part of the support policy for the versions of Windows with which it is included.
Internet Explorer makes use of the accessibility framework provided in Windows.
Internet Explorer is also a user interface for FTP, with operations similar to that of Windows Explorer.
Its usage share has since declined with the launch of Firefox (2004) and Google Chrome (2008), and with the growing popularity of operating systems such as Android and i OS that do not support Internet Explorer.