Mozilla Foundation
Protect and improve the internet as a public resource, open and accessible to all
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We’re working to put control of the internet back in the hands of the people using it.
Verified certifications
Confirmed against the issuing authority - not self-reported.
Mission
Protect and improve the internet as a public resource, open and accessible to all
Focus areas & reach
· What they work on and whereHow it stacks up against peers
· vs. 8 similar science & technology in United StatesConcerns
· None foundWhere every $1 goes
· FY2024 · IRS 990 (FY2024)GiveRadar Analysis
Original analysis from GiveRadar's dataset of comparable organizations
GiveRadar's verified records show Mozilla Foundation with a complete profile, cross-referenced across 6 independent sources including the IRS.
- GiveRadar has cross-referenced this organization across 6 independent sources, led by the IRS - among the most thoroughly sourced profiles in its cohort. See the sources
- GiveRadar holds 14 years of financial filings for this organization, the most recent for fiscal year 2024 - a deeper filing history than 97% of the 3,236 science & technology charities in the United States with filings on record. See the filings
- It is one of the better-documented science & technology charities in the United States GiveRadar currently tracks, because GiveRadar has verified its financial disclosures and its governance. Most of those have little verified data on record yet. View this cohort
- government registration
- financial records (14 filed years)
- disclosed leadership
- a website
- a contact email
- a donation page
- an owner-submitted profile claim
Analysis based on GiveRadar's benchmark dataset of 2026-07-03. It describes what GiveRadar has verified, not a judgment of the organization itself.
Common questions
· Auto-generated from filings + methodologyMozilla Foundation is a registered science & technology nonprofit based in San Francisco, CA, United States. It is registered with the Internal Revenue Service (IRS). It was founded in 2003 and has been operating for 23 years. Its EIN is 200097189. According to GiveRadar's records, it holds active tax-deductible status on the IRS Publication 78 list, which means donations are tax-deductible and the organization is in good standing with the IRS. GiveRadar's Integrity Assessment for the organization is 80/100, which reflects how much public information is available, not whether the charity is legitimate. The organization reports $37M in annual revenue. 80 officers and directors are publicly disclosed. No red flags have been detected.
Mozilla Foundation's EIN (Employer Identification Number) is 200097189. This is the organization's IRS tax identification number; you can use it to verify tax-exempt status and to look up its Form 990 filings with the IRS.
Mozilla Foundation has a GiveRadar Integrity Assessment of 80/100. This score combines five components: Registration (20 pts), Financial Transparency (30 pts), Governance (20 pts), Contact Availability (10 pts), and Data Recency (20 pts), with negative adjustments for any red flags. A score of 80 ('Strong transparency') reflects well-documented governance, recent financials, named leadership, and working contact details. For comparison, the average integrity assessment for science & technology charities in United States is 90/100.
Mozilla Foundation is located in San Francisco, CA, United States. The organization was established in 2003 and has been active for 23 years.
Based on official tax filings, Mozilla Foundation has $37M in annual revenue. It allocates 66% of expenses to programs and services. This is below the average of 82% for science & technology charities in United States. Its revenue is significantly above the peer average of $15M. Create a free GiveRadar account to view the complete financial breakdown with year-over-year trends.
Mozilla Foundation is classified as a Science & Technology organization, registered in United States. It operates as a Publicly-supported charity (509(a)(2)). By size, it is categorized as a major organization. It has $37M in annual revenue. The organization has 80 disclosed officers and directors.
No red flags have been detected for Mozilla Foundation. GiveRadar automatically screens charities for concerning patterns including high executive compensation, low program spending, and missing financial filings. Based on available official data, no issues have been identified.
According to GiveRadar's records, Mozilla Foundation holds active tax-deductible status on the IRS Publication 78 list, which means donations are tax-deductible and the organization is in good standing with the IRS. It is registered with the Internal Revenue Service (IRS). It reports that 66% of expenses go to programs (the peer average is 82%). You can donate directly through their official donation page linked on their GiveRadar profile. GiveRadar provides data for research and does not endorse any organization. A GiveRadar Integrity Assessment reflects how much public data is available, not whether an organization is safe to donate to, so it is always smart to do your own research before giving.
We’re working to put control of the internet back in the hands of the people using it. Mozilla Foundation is classified as a science & technology organization registered in United States. The organization was founded in 2003.
Among science & technology charities registered in United States: It allocates 66% of expenses to programs, below the peer average of 82%. Its annual revenue of $37M is well above the peer average of $15M.
Yes, donations to Mozilla Foundation are generally tax-deductible in the United States. Its EIN is 200097189, which you can use for tax filing purposes. Donors can typically deduct contributions on their federal income tax return if they itemize deductions. Consult a tax professional for guidance specific to your situation.
Filing history
10 years on file from IRS 990 (FY2024): revenue, expenses, program spending, assets, and liabilities by fiscal year.
See 5 years of revenue, expense breakdowns, and balance sheet.
Sign up to viewTaxes
Tax-deductibility for donors
Donations may be tax-deductible for residents of United States under local rules. Confirm with the charity directly.
MOZILLA FOUNDATION is registered in United States. Donations from the Netherlands to charities outside the EU/EEA are generally not tax-deductible for Dutch donors unless the charity is listed on the Dutch ANBI register with foreign-recognized status.
Always confirm tax treatment with the charity directly or your tax advisor before donating.
Staff & volunteers
From filings and published profiles
Leadership
From FY2024 filing
Officers & trustees (25)
Source: Public filings
25 officers and trustees on file - free with a GiveRadar account.
Latest news
From global news sources
10 articles found
From news sources and the organization. Shown for transparency; news never affects the integrity score.
Claude Mythos finds 271 Firefox flaws, Mozilla believes it shifts security toward defenders - Help Net Security
Mozilla Foundation Brings Hollywood's AI and IP Reckoning Into the Open - PR Newswire
Mozilla launches Thunderbolt AI client with focus on self-hosted infrastructure - Ars Technica
Mozilla takes on enterprise AI providers with Thunderbolt - The Register
Mozilla to Release New Firefox Update with Built - In VPN Here What to Expect From the Browser
Mozilla Firefox gets a free VPN with notable limits
Mozilla Firefox Nova : Internal Project Reveals Major Visual Overhaul
Mozilla Foundation Incubator Democracy x AI Cohort 2026 (up to $50,000) - Opportunity Desk
India’s chance to create AI’s third way: Mozilla Foundation president Mark Surman - The Economic Times
Mozilla’s new AI strategy marks a return to its ‘rebel alliance’ roots - Fast Company
Activity timeline
Filings and press mentions, merged
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Sign up to write a reviewCause areas in United States
How many charities work in each area, with this charity's area highlighted.
Most common causes in United States
Causes charities work on most.
Sources and verification
- Registration and legal identity
- Internal Revenue Service (IRS) - Tax Exempt Organization Search
- Financial filings
- IRS Form 990 filings - Fiscal year 2024 most recent on file.
- Officers and trustees
- Internal Revenue Service (IRS) - Tax Exempt Organization Search - 80 disclosed in the public registry.
- News and media coverage
- GDELT Project + Google News
- Supplementary verification
- ProPublica Nonprofit Explorer
- Supplementary verification
- Wikidata structured data
- Supplementary verification
- Charity Navigator
Data freshness
What we know and don't know
Exactly which public data we hold on this charity. Our score reflects transparency, not impact.
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Financial data · FY2024 on record
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Named leadership · 80 officers on file
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Executive pay · Disclosed
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Government registration · Registered with an official registry
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Mission statement · Published
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Official website · On record
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Headquarters address · On file
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Direct contact · Email or phone published
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Tax-deductibility · Verified
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Founding date · 2003
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Programs & activitiesNo named programs listed by the charity
Methodology
GiveRadar builds each profile primarily from official government charity registries, supplemented where available by third-party nonprofit databases and news archives, and combines it into a single 0-100 integrity assessment. The exact sources for this charity are listed above. We don't take a cut of any donation, ever.
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Quick facts about Mozilla Foundation
- What is Mozilla Foundation?
- Mozilla Foundation is a science & technology publicly-supported charity (509(a)(2)) based in San Francisco, United States. We’re working to put control of the internet back in the hands of the people using it.
- When was Mozilla Foundation founded?
- Mozilla Foundation was founded in 2003.
- Who leads Mozilla Foundation?
- Mark Surman serves as President.
- Where is Mozilla Foundation located?
- Headquartered in San Francisco, CA, United States.
- What is Mozilla Foundation's annual budget?
- Annual revenue for fiscal year 2024 is approximately $10M-$100M. 66% of expenses go to program services.
- Is Mozilla Foundation trustworthy?
- Mozilla Foundation has a GiveRadar Integrity Assessment of 80 out of 100 (Strong transparency). The score reflects public-data transparency: registration, financial disclosure, governance, contact details, and how recently data was refreshed. It does not measure program impact.
- What is Mozilla Foundation's registration number?
- IRS EIN: 200097189.
- What is Mozilla Foundation's website?
- http://www.mozilla.org