Not content to mess with IT all over the world wide web, M$ has changed its user-agent string from its browser to mess up every web-site that sends different stuff to M$’s web browser…
“Microsoft have replaced the "MSIE" string, which identifies the browser to the website as Internet Explorer, with just "IE," meaning host websites won’t be able to use their current CSS hacks on IE11. To further ensure IE11 users don’t receive an odd version of the site, Microsoft also included the command "Like Gecko" which instructs the website to send back the same version of the website as they would to Firefox.”
see IE11 to appear as Firefox to avoid legacy IE CSS – Neowin
I think this is tantamount to false advertising or besmirching the brands of the competition. It’s just another dirty trick of M$, the purveyor of the worst malware on Earth.