Mitchell Baker made 2,698,800.00 USD in 2020 according to the IRS form[0] mozilla foundation filed, but not from the foundation but from the "related for-profit", i.e. mozilla corperation where she was and still is CEO as well (she is CEO of both, the non-profit foundation and the for-profit subsidiary at the moment). There is no such public IRS form available for 2021 yet.
[0] https://assets.mozilla.net/annualreport/2020/mozilla-2020-fo... Page 7 (9 in the PDF)