Windows 10 Mobile was the last installment for the Windows Phone platform, which was meant to fight against Apple's iOS and Google's Android, but struggled to earn itself a meaningful share of the market.
The Edge Android app will bring Favourites, New Tab, Reading Page and Reading View from the PC to the phone version.
A market analyst said that it was evident sometime back that Microsoft will not be successful in the smartphone market.
For example, Windows does not support Citymapper. Even in France, where Microsoft had nearly caught up with iOS in 2015 with 12% of the market, Windows Phone has passed under the 1 %.
During Build and Inspire conferences of Microsoft, CEO Satya Nadella stated the company's mantra, "mobile-first, cloud-first".
It seems Windows 10 Mobile's biggest problem was that Microsoft couldn't convince developers to write apps for the platform, despite trying "very hard" by offering them incentives.
Having said that, Belfiore did reassure current users that even though Microsoft won't be focusing on this platform any more, the company will "continue to support the platform" by rolling out bug fixes and security patches. "But building new features/hw aren't the focus", Belfiore tweeted.
The tweets come a short time after Microsoft founder Bill Gates revealed that he switched to an Android device "with a lot of Microsoft software". Microsoft struggled to impress the users as they lacked many important apps.
But users have long complained that the lack of apps on Windows Mobile devices is a deal breaker.
Facebook's hugely popular Messenger app was cut from a huge number of Windows phones in March this year. On Sunday, Belfiore said that he too had "switched platforms for the app [and hardware] diversity".
Customers were informed of the change by an email from Facebook. "Choose what's best for you".
"We will support those users too", Belfiore wrote.