The Verge reports that Microsoft is now testing a new warning the appears when a user goes on to attempt to run the Chrome or Firefox installers, on the latest version of Windows 10 for insiders. It reads, "You already have Microsoft Edge - the safer, faster browser for Windows 10". The company has been trying various moves over the years to lure users to Edge, such as adding pop-ups when people use third-party browsers. Now, Redmond appears to be at it again, after a Windows 10 pop-up test was discovered that advised users to choose Edge over other browsers. Currently, this is only on an Insider build, but there's every chance it'll be on customer PCs in the October 2018 update. Since this is an A/B test, not all installations of Build 17755 show this prompt. Seeing the numbers, it is understandable why Microsoft would want to push Edge down everyone's throat but Insiders and Windows users in general are apparently miffed. The software simply installs as you would expect it to.
For example, when visiting Google.com using Edge, you will see dialog boxes that make statements like "Switch to Chrome".
This isn't the only message in Windows 10 that promotes Microsoft Edge. Google, too, throws up prompts to use Chrome whenever Google sites are visited using Edge or Firefox.
And, even after you make another browser your default, many things in Windows 10 ignore your preference and just open Edge anyway.
That said Edge's score is only slightly lower than the others, and while it's missing some features, such as support for the 3D graphics rendering API WebGL 2, it supports some features missing from Chrome, such as the WebVR API for using virtual-reality headsets in the browser. However, Microsoft hasn't been successful in doing so and the market share numbers are the proof of that.
I tried to install Chrome Stable and Firefox Stable, and both installations were intercepted by the prompt. When you search for the Chrome download page in Edge, you get a giant banner telling you how great Edge is. To do that requires focusing on making Edge better than the alternatives and marketing it as such.