Multiple profiles in Chrome is super useful, but it doesn't work at the tab level, does it? Just at the window level? Not that that's a fundamental change, but it's a nice usability bump
True, but that for me is a feature (I almost always want new tabs to open in the same container; for instance, when reviewing a Github PR and clicking through to see context).
But from a privacy UX perspective, both Chrome and Firefox accommodate this use case gracefully.
It sounds like you already know this, but for anyone else reading, tabs inherit the container of the tab that opened them (aside from special cases like Facebook Container, which trigger based on the domain).
