I want to get my w-2 forms, how can I get it?
How can I get to view my W-2 form ?
You can explore the entire FAQ about donations to Mozilla foundation
Here is the section that is relevant to your question:
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 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 at email@example.com.