A pet theory of mine is Mozilla’s C-suite knows no matter how bad Firefox gets and how low their user count, Google will continue to fund them because Google likes something to point to if antitrust came knocking - in fact the lower Firefox’s influence the better as Chrome can then unilaterally control the web.

So they spend all of Mozilla’s money on various BS like Pocket and now VPN to try to make more money so they can further increase their already high salaries, instead of reinvesting into Firefox - hence the anti-user intrusive ads, the reduction of head count while paying themselves millions of dollars.