Internet Explorer 10 provides an “add-on free” experience. It supports HTML 5 for video content, but you can’t install toolbars and add-ons in Internet Explorer 10.

If you are viewing a webpage that requires an add-on or uses Flash, you can view the content by opening the website in  Internet Explorer for the desktop. To do this, swipe in from the right edge of the screen (if you’re using a mouse, point to the upper-right corner of the screen), tap or click Settings, and then tap or click Use the desktop.