I’m curious if there is a user segment truly interested in this feature/product and what their use case is. Naively this feels like a situation of “why on earth would you do this?”
For what it's worth, I think I am. I got a gift voucher from work a little while back, combined it with a few other gift vouchers I had lying around and bought a convertible ChromeOS tablet. It seemed like a good choice, since I didn't have a tablet form-factor device at the time, it was a lightweight ARM thing that could natively run Android apps and Linux apps, and it ran a mostly-OSS stack including open source graphics drivers. I found it way more appealing than the equivalent devices running Android or Windows.
As soon as I got it home, I realized that all my passwords and bookmarks were in my Firefox account, and I remembered that I don't really like the idea of using Chromium-based browsers on the web for philosophical reasons. I tried to install Firefox, but the Linux version didn't work too well in tablet mode, so I had to suck it up and use Chrome. Kind of dumb on my part, I know, but I still like the device, and I'd like it even more if Firefox worked better on it.
I can see it being useful in a corporate setting to limit which sites you can visit with Chrome to just your secure admin panels and internal apps. Then use Firefox to go to dangerous places like… the Internet.
That way if one of your users clicks a link in a phishing email Chrome simply won’t open it.
As soon as I got it home, I realized that all my passwords and bookmarks were in my Firefox account, and I remembered that I don't really like the idea of using Chromium-based browsers on the web for philosophical reasons. I tried to install Firefox, but the Linux version didn't work too well in tablet mode, so I had to suck it up and use Chrome. Kind of dumb on my part, I know, but I still like the device, and I'd like it even more if Firefox worked better on it.