Mozilla management has me puzzled. They have a position that is incredibly strong, lots of dedicated users that would rather quit the web than switch to Chrome or Edge.
"But we know we also need to go beyond the browser to give people new products and technologies that both excite them and represent their interests"
Is exactly what they should stay away from. Work on the bloody browser, forget about the rest. There are bugs open for the browser that cost them marketshare every day (WebMIDI for instance) driving people to Chrome.
Spreading their focus thinly, causing their main product to be somewhat neglected and behind when it comes to comparing it with other browsers. And that's before we get into the re-write and forced upgrade and breakage of lots of important plug-ins.
It's not so much the changing world that is the problem here, but a ship that has become rudderless and that does not treat the browser landscape like the war it really is.
The world needs Mozilla, healthy and under good management. I'm not sure if that is a luxury we will have for much longer if they are going down hill this fast. On the plus side, it's open source and will - hopefully - continue to work for many years as long as there are people willing to keep it alive.
So as far as I'm concerned this post highlights the problem in the post itself, this is not what's needed.
Laser focus on the browser at the expense of all the fluff. Forget about 'internet activism' and 'building new products'.
Get the most secure and most user friendly, privacy first, standards compatible and feature rich browser out there and you'll survive for another decade at least. Get distracted by new and shiny stuff and I'd be surprised if it lasts another five years.