Donor FAQDonate now
Below are the most frequently asked questions about donating to the Mozilla Foundation.
What are the ways I can donate?
Visit this link to make a secure online donation right now via credit card or PayPal. For additional ways to give — like checks or donations of stock — visit our Ways to Give page.
How does Mozilla ensure my personal information is protected?
Finally, when you donate to Mozilla through a third party like PayPal or Braintree, those organizations also collect your data. Their collection and use of your data is governed by their respective privacy policies.
Why do you need my address in order to process a donation?
Where do I send a check? (Updated October 2020)
UPDATE October 2020: The Mozilla Foundation is happy to accept your donation (made payable to “Mozilla Foundation”) via check; however please note that processing and acknowledgment of your gift may be delayed by changes to our office procedures due to the COVID-19 pandemic. You can send checks to:
Mozilla Foundation, attn: Donor Care
2 Harrison Street, Suite 175
San Francisco, CA 94105
Please include your email address on the memo line of your check to help us track and attribute your gift.
Please also note that the Mozilla Foundation can only accept checks in U.S. dollars drawn on a U.S. bank, and cannot accept contributions for MZLA/Thunderbird. (Contributions to MZLA/Thunderbird via check can be made by following these instructions.)
Can I donate Cryptocurrencies?
No. As of January 2022, the Mozilla Foundation is reviewing its cryptocurrency policy and its alignment with our climate change commitments. We have paused cryptocurrency donations during this time.
How will my donation be used?
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.
Who donates to Mozilla?
Last year, more than 400,000 individuals gave to Mozilla to protect and improve the health of the Internet. The Mozilla Foundation also receives support in the form of grants from other like-minded major foundations, including the Knight, MacArthur, Bill & Melinda Gates, and Ford foundations.
Does my donation give me access to tech support?
Anyone can access tech support for Mozilla’s products by visiting the support forum. Mozilla does not provide tech support or enhanced tech support in exchange for donation.
Is my donation tax deductible?
Contributions go to the Mozilla Foundation, a 501(c)(3) organization based in San Francisco, California, to be used in its discretion for its charitable purposes. They are tax-deductible in the U.S. to the fullest extent permitted by law. The Mozilla Foundation Tax ID is 20-0097189.
For donors outside of the United States, please consult with your tax adviser about whether your donation is tax deductible.
In the case of some substantial gifts, we may be required to report names and addresses to the IRS. Mozilla is required by law to report this information for its substantial donors and for cash equivalent in-kind gifts, like stocks, over $5,000.
How can I get a receipt for U.S. tax preparation purposes?
If you give to Mozilla online, you should immediately receive an emailed receipt for your donation that you can use for your U.S. tax preparation purposes. Please check your spam or junk folder if you don’t see that email arrive in your inbox. If you need an additional copy of your receipt for your U.S. tax preparation purposes, please contact us via this form.
How do I cancel or change my recurring donation?
If you used PayPal to set up a recurring donation, you’ll need to log in to your PayPal account to make changes or to cancel. If you made a monthly donation using your credit card, please contact our support team via this form. Please include the email address and name you used to make your donation, and we’ll try to help you within two business days.
Can I donate in a currency other than United States dollars?
Yes. On our online form, use the drop down menu on the form to select any of over three dozen currencies.
Do you accept stock donations?
Yes, we generally accept gifts of publicly traded stocks and bonds, and will consider other gifts of securities on a case-by-case basis. Please contact Jesse Ward at [email protected] for more information. (You should consult your tax adviser on the extent to which you may deduct charitable contributions of certain securities and the documentation you need in order to claim a deduction.)
I’m unable to give money at this time, are there other ways I can help Mozilla?
Absolutely! We understand that not everyone can support our mission financially, but there are many ways to help Mozilla and be a part of our community. In fact, the success of our mission depends on participation from people like you. Find the best way for you to get involved with our community here.
Who can I email directly with questions about donating?
If you have a question about donating to the Mozilla Foundation, please contact us via this form. We will do our best to follow-up with you within 72 hours. If you need technical support for products such as Firefox, please contact Mozilla Support for assistance.
When I make a donation, how long do you retain my data?
Do you accept matching funds from my employer?
Yes! We’re registered with most major matching gift portal systems, and would be happy to work with you to get your donation matched by your employer. Please contact us via this form if you have any questions or need assistance.
Can I donate specifically to support the Thunderbird project?
Yes! Please visit this donation form to make a contribution specifically for Thunderbird.
Why does Mozilla use reCaptcha?
I’m in the United States. Can I support Mozilla through eBay for Charity or the Amazon Smile Program?
Yes! The Mozilla Foundation is enrolled in both eBay for Charity and the Amazon Smile Program. On eBay, you can add us as your favorite charity, shop for items where a portion of the sale benefits the Mozilla Foundation, or sell your own items and direct a percentage of the sales price to benefit the Mozilla Foundation. On Amazon.com, please remember to initiate all your purchases by starting at smile.amazon.com.