I'm a happy Firefox user. IMHO the thing that needs sorting out is the relation between Mozilla the company and Mozilla the Foundation.
I just browsed the website of the Mozilla Foundation and to my surprise learned that Firefox development is not one of its responsibilities. I was assuming that that was in fact its primary mission. It's not apparently. Maybe I'm wrong and it's just a vague website but it reads to me like they are spending their time doing activism and marketing and that they do not employ any developers.
The reason the foundation leading product development would make sense to me is that having no commercial conflicts of interests are kind of a per-requisite to do what most users (including me) value in Firefox, is to protect their privacy, commit to open standards (over any competitive advantages that proprietary/exclusive features could bring), be as secure as they can be, etc.
Except it seems that Firefox development is currently not structured like that and Firefox is instead an OSS product developed by a commercial for profit business competing with other companies backing a different OSS product (i.e. chromium) where users have some concerns about the conflicts of interests of the companies backing that (e.g. Google and MS) with respect to exactly the things I value in Firefox.
So, given that, what's the point of having the foundation and what's the point of Firefox as a commercial product (other than guilt tripping Google into keeping the money coming)? I don't mean pretty words and mission statements of a commercial entity. But what's the point for users picking one company over another? They are both companies that ultimately are run by their share holders; not by their users. A foundation is different: it serves its members and its mission without a goal to enrich shareholders.