It seems as if Microsoft is testing how to make Edge
appealing to users of other browsers like Firefox.
A screenshot twittered by WindowsLatest shows that
Microsoft is placing a hint to their newest browser.

This hint is visible in the “Suggested” area of Windows 10 start menu and seems to aim at Frefox users at the moment:

Shameless promotion or advertising? Or the new fight fo Microsoft against alternative browsers? The most interesting part however might be that the new Microsoft Edge browser uses the Chromium engine which has been announced last year.