I'm curious about Mozilla's seeming shift in strategy (possibly it was awhile ago and I overlooked it):

For a long time, with relatively limited (compared to Google and Apple) development resources, they focused on minimizing upkeep and technical debt. They added and maintained features appealing to the vast majority, the non-technical users, and left the rest to extensions.

Now I'm seeing geek and power user favorites like a built-in color picker, PDF editing features, and now multi-account containers moved into the browser. What changed? Are they focusing on different audience? Do they have new resources so that they can afford maintaining all these additional, more niche features?