Chris Beard, CEO Mozilla Corporation:
Microsoft’s decision gives Google more ability to single-handedly decide what possibilities are available to each one of us.
From one point-of-view this move by Microsoft might seem to make total sense. They spin this as "it will be easier for web developers to target one less browser engine". However, this is exactly what web standards are supposed to afford - developers target the same set of standards and the browser engines, however many there are, target the same set of standards. In theory, having multiple engines shouldn't make it too much more difficult for developers. In practice, however, it has. But most developers would agree that to avoid a monopoly in the browser market we'd take on the added complexity we've had for years. In fact, having multiple browser engines has made browsing on the web better since the competition has led to faster load times, less battery drain, and less computer memory usage.
Beard's take is right on. Google has not shown themselves to be the best steward of privacy, of web standards, or of leading the most popular browser engine. In fact, they routinely build web applications that only work using their engine. This is the exact antithesis of the web. And giving Google even more power is obviously not a good thing.
Microsoft, though, can do whatever they'd like. It is just unfortunate they've decided to go this route.
I switched away from Chrome in 2017 for good. I've been using Firefox on every device I own and while it is a little more work to do so on iOS I will continue to.
Beard's call-to-action is to use Firefox. I think you should too. But I would simply say use anything but Chrome for a while just to swing the market in more directions.