A lot of people in this thread seem to downplay the article with "yeah, that might be your opinion..." but two facts that are facts and not opinions are:
The market share Firefox hold is insignificant.
Mozilla's business is a near 100% dependency on one "customer", Google.
This means that if Google decides to stop bank rolling Mozilla it's game over. Firstly because other revenue streams are currently near insignificant when you look at the total expenses.
Secondly because since Firefox hold no significant market share, no one else would be interested in investing in Mozilla and the future of Firefox. After all, whatever Mozilla will throw up on the wall as the "grand masterplan for world dominance" would just end up in the question "Why didn't you do this before?".
I've been using Firefox for almost 20 years. I started using it because I saw what happens when one company controls the browser market.
That web browser did so much damage and we only really got rid of it some year ago.
Chrome is a perfect example that the history repeats itself and that people are fucking stupid.
People are actually acting surprised and complain about Google putting effort into making adblocking impossible in Chrome.
So all in all, if Mozilla doesn't find other revenue streams, Firefox is dead...
It just doesn't know it yet.
Now, everyone yapping about that Linux was an insignificant player and still made it to the top just sound like enthusiasts who really doesn't know history and the harsh reality of doing business.
Linux was just a little more than hobby project (business wise) that essentially only Red Hat and Suse made real money from in the 90's.
Arguably you could say that the turning point was when the CEO of IBM, Lou Gerstner, shocked the world by saying that IBM was going to pump in 1 billion dollars in Linux during 2001. Now, that doesn't look like much today when just Red Hat has a yearly revenue of 3-4 billion, but that's how insignificant Linux was at that time.
After that milestone Linux went for the jugular on Windows Server.
For ordinary people it would still take almost 10 years before they would hold something Linux in their hands.
The rocket engine that accelerated Linux and pieces that it was ready for end users was Google and Android in 2007.
Linux's growth the last 20 years wasn't mainly driven by enthusiasts, it was business pumping in money in future opportunities.
What future opportunities can Mozilla sell to investors with the market share Firefox has today?
Arguably Google needs Firefox and co to not lose chrome in Europe due to anti monopoly rulings. Think that is sadly the best thing Firefox has to offer investors.
I expect Google to keep Mozilla/Firefox on the lifeline indefinitely to avoid antitrust issues in the states and EU, so Mozilla/Firefox won't go anywhere.
Still, this doesn't mean anything, because I often need Chrome or Safari to access some websites.
In the end it is quite funny: Moving a lot of stuff to the web made Linux a more realistic desktop option, at the same time to access a lot of stuff on the web one needs to run a Blink browser.
IMHO the most annoying thing is, that we could have at least some laws, which mandate that every government service must be available to Open Source users and every government paid software must run on at least Linux. Thanks to lobbying and power this will never happen.
Edit: To state it more clearly: Firefox is IMHO in bad shape and in a bad situation. Firefox won't die, but at the same time right now I already need Chrome/Safari browsers, because Firefox support is broken on many sites. I see no way Firefox can gain significant market share, especially seeing what regular consumers tolerate from Microsoft/Edge and Google/Chrome.
One big problem, even if Google continues to pour money into Mozilla, is that more and more sites and systems drops support for Firefox. When I say "drop" I mean implement measures for making it harder to use a service if you use Firefox. Even Google does this.