While testing on IE11 today I noticed a smiley face in the upper left corner that brings up a context menu with the options "Send a smile" and "Send a frown".

Turns out that is how you send browser feedback on IE11, the frown being the ability to report a site, and the smile to give positive feedback on the browser.

Turns out you can't send negative feedback for the browser, so I sent positive feedback. What did it say?

"What did you like?"
- How fast google chrome downloaded.