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How is Firefox funded? Do you rely on donations? What else?

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I understand that FF is a not-for-profit. Are you a 501c3? I am interested in how you are funded.

I understand that FF is a not-for-profit. Are you a 501c3? I am interested in how you are funded.

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Yes, The Mozilla Foundation is a California non-profit corporation exempt from Federal income taxation under IRC 501(c)(3). The majority of Mozilla Corporation’s revenue is from royalties earned through Firefox web browser search partnerships around the world. But also donations are welcome.

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Yes, The Mozilla Foundation is a California non-profit corporation exempt from Federal income taxation under IRC 501(c)(3). The majority of Mozilla Corporation’s revenue is from royalties earned through Firefox web browser search partnerships around the world. But also donations are welcome.

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from https://donate.mozilla.org/en-US/faq#item_8

Don’t Mozilla products, like Firefox, earn income? Firefox is maintained by the Mozilla Corporation, a wholly-owned subsidiary of the Mozilla Foundation. While Firefox does produce revenue — chiefly through search partnerships — this earned income is largely reinvested back into the Corporation. The Mozilla Foundation’s education and advocacy efforts, which span several continents and reach millions of people, are supported by philanthropic donations.