1) Make a good browser. Get market share. Use it to push the envelope for what can be done on the web.
2) Respect user privacy.
3) Don't spam me with push notifications, in-browser advertising, or any other marketing communications unless it helps goals 1 or 2.
4) Don't spend most of your money on projects that aren't your browser.
Mozilla keeps getting into partnerships that send data to third parties, advocating for things that have nothing to do with browsers or the internet, investing money into every new trend[0][1], and not focusing on their core selling point: a browser that's fast, safe, privacy-focused, extensible, standards-compliant, and stops Google from acquiring a total monopoly over browsers so they can remove adblockers.
This press release hints that they're going to continue tilting at windmills: their new direction is "diverse, representative, focused on people outside of our walls, solving problems, building new products, engaging with users and doing the magic of mixing tech with our values." They're "a technical powerhouse of the internet activist movement", and rather than donors who support their browser, there are "hundreds of thousands of people who donate to and participate in Mozilla Foundation’s advocacy work". I read this as "we're going to spend time and money on things that are not Firefox".
I haven't donated to them for years, because I'm sick of seeing their money go to projects that don't integrate with Firefox and won't ever reach a significant number of consumers while they bleed market share, or to American-centric policy advocacy that also doesn't relate to the internet. I don't think this is an unrealistic expectation, because there's no way in hell I'd donate to Google or any of their competitors in the first place. Hopefully their lay-offs are an opportunity to focus their efforts on providing a browser across all platforms and adding features to that browser.
[0] https://en.wikipedia.org/wiki/List_of_Mozilla_products#Aband... [1] everything involving VR on https://support.mozilla.org/en-US/products