The Mozilla Foundation is a US 501c3, all their finances are public record. I believe the most recent filed financial statement is for 2016 [0]. See also the su

The Mozilla Foundation is a US 501c3, all their finances are public record. I believe the most recent filed financial statement is for 2016 [0]. See also the summary document, the 2016 State of Mozilla Report, for higher level information [1]. 0: https://assets.mozilla.net/annualreport/2016/2016_Mozilla_Audited_Financial_Statement.pdf https://assets.mozilla.net/annualreport/2016/2016_Mozilla_Au... 1: https://www.mozilla.org/en-US/foundation/annualreport/2016/ https://www.mozilla.org/en-US/foundation/annualreport/2016/