Yes, and it’s taxable… but… the Mozilla Corporation is a wholly owned subsidiary that serves the non-profit, public benefit goals of its parent, the Mozilla Foundation, and community.
And, it’s guided by these priciples:
Mozilla Foundation Pledge
The Mozilla Foundation pledges to support the Mozilla Manifesto in its activities. Specifically, we will:
• Build and enable open-source technologies and communities that support the Manifesto’s principles;
• Build and deliver great consumer products that support the Manifesto’s principles;
• Use the Mozilla assets (intellectual property such as copyrights and trademarks, infrastructure, funds, and reputation) to keep the Internet an open platform;
• Promote models for creating economic value for the public benefit; and
promote the Mozilla Manifesto principles in public discourse and within the Internet industry.