What is IE mode?


IE mode on Microsoft Edge makes it easy to use all of the sites your organization needs in a single browser. It uses the integrated Chromium engine for modern sites, and it uses the Trident MSHTML engine from Internet Explorer 11 (IE11) for legacy sites.


When a site loads in IE mode, the IE logo indicator displays on the left side of navigation bar. You can click the IE logo indicator to display additional information, as shown:


IE logo indicator 


Only those sites that you specifically configure (via policy) will use IE mode, all other sites will be rendered as modern web sites. For a site to use IE mode, you need to:


  • List the site in the Enterprise Mode Site List XML defined in one of these policies:
  • Microsoft Edge 78 or later, "Configure the Enterprise Mode Site List"
  • Internet Explorer, "Use the Enterprise Mode IE website list"

    Note

    We only process one Enterprise Mode Site List. The Microsoft Edge site list policy takes precedence over the Internet Explorer site list policy.


  • All Intranet sites when the Send all intranet sites to Internet Explorer group policy is enabled (Microsoft Edge 77 or later.)

IE mode supports the following Internet Explorer functionality


  • All document modes and enterprise modes
  • ActiveX controls (such as Java or Silverlight)
  • Browser Helper Objects
  • Internet Explorer settings and Group Policies that affect the security zone settings and Protected Mode
  • The F12 developer tools for IE, when launch with IEChooser
  • Microsoft Edge extensions (Extensions that interact with the IE page content directly are not supported.)


IE mode doesn't support the following Internet Explorer functionality

  • Internet Explorer toolbars
  • Internet Explorer settings and Group Policies that affect the navigation menu (for example - search engines, and home pages.)
  • IE11 or Microsoft Edge F12 developer tools