That has not bearing upon whether the Mozilla Corporation is for profit or not. It is for profit and the original statement was regarding a lack of understanding why someone would use a browser made by a for profit company. Firefox is factually made by a for profit company. One whose major source of income is the nefarious Google.

I'm also afraid how this usually turns out is the for-profit part takes over the non-profit part. See OpenAI or just about any major national non-profit in the US.