Contributions go to the Mozilla Foundation, a 501(c)(3) organization based in Mountain View, California, to support Thunderbird. Mozilla reserves the right to find another use for the funds if it determines that Thunderbird is no longer furthering Mozilla’s mission. They are tax-deductible in the U.S. to the fullest extent permitted by law.
Mozilla 基金会是在美国加利福尼亚州山景城登记的 501(c)(3) 免税机构。向 Mozilla 所捐的款项，将用于支持 Thunderbird 的运作。Mozilla 保留发现 Thunderbird 无法再推动 Mozilla 的使命时，将捐款转作其他用途的权力。捐款人亦可依照法律规定抵扣美国国内税款。Mozilla 未对此捐款提供任何服务或物品作为回报。