End of Support for Internet Explorer 11 in Experience Builder Sites
Extended Support for IE11 for Experience Builder sites ended on
December 31, 2020. Users trying to access Experience Builder sites with IE11 see a window
informing them that they’re using an outdated browser, and to either update or use another
browser for a better experience. New features are supported and available only on modern
browsers.
Where: This change applies to Aura sites accessed through Lightning Experience and Salesforce Classic in Enterprise, Performance, Unlimited, and Developer editions. LWR sites never supported IE11.