MARC-NY,
Actually, I wondered when I originally posted my response in this thread whether Microsoft would keep that browser protection app for Google's Chrome browser around much longer.
The reason is that with the release of Microsoft's own new Edge browser that's built over the same Chromium open source browser as Google Chrome, there's really no reason to keep supporting this added security for the 3rd-party browser.
Microsoft Updates Edge With A Set Of Stellar New Features To Beat Chrome
Though I believe Microsoft still needs to add the ability to login to Google Apps, as well as possibly a few other modifications to make the new Edge fully compatible with Chrome, for most typical users like myself, it's already similar enough to Chrome that I can't really tell the difference.
In truth, this was part of the reason that Microsoft decided to switch to Chromium, since for most typical Windows user's it's only the look and feel of Chrome that matters, with the website compatibility and familiar controls all that most consumers would ever care about.
In other words, by changing Edge to appear like Chrome, Microsoft has almost completely removed the need for all but the most technically picky to install it, making the addition of that popular 3rd-party browser unnecessary.
Rob