Why Musk? The choice seems clear as are the tangents to his other activities. He is one of the few "tech zillionaires" who does not kowtow to the demands of the censorious identity politics crowd which has instantly turned him from one of the darlings of "progressives" to "undesired person #1". He seems to have the drive to keep that crowd from dominating the 'net. Having all major browsers - Chrome, Safari, Edge and Firefox - under the control of that same crowd in one way or another is not conducive to the diversity of opinion on the 'net, the only type of diversity which really matters and yet the one type of diversity which is shunned by the aforementioned I.P. crowd.
What is needed is developers ("developers, developers, developers!" [1]), funding and mindshare. The latter is probably fairly easy to get given that there are many who are more than tired of all that identity politicking. Funding should not be that hard to arrange either given the way money is being thrown around. Developers who are versed in the Gecko code base and are willing to work for a project which explicitly states to be politically neutral - as in 'does not push any narrative' - is more of a question. If there is anyone here who works/worked at Mozilla who can shine a light on that it would be helpful. Do those who work/worked there actually support Baker's push towards politicising the Mozilla project while the flagship product - Firefox - is heading towards oblivion?