The irony here is that Microsoft never had interest in 'web browsing' on the internet. IE was simply a response to the popularity of Netscape in the 90s. Microsoft envisioned an internet where desktop apps would use web services under the covers to get data over the internet. Being locked in and locked down is essentially what they wanted. Also Microsoft attempted several times to kill off development of the browser once IE had marketshare. They also claimed there was no more innovation to be had in the modern web browser. So after all of this, perhaps Microsoft is changing their mind.