Thunderbird is maintained by the Thunderbird Community, in cooperation with Mozilla Corporation, a wholly-owned subsidiary of the Mozilla Foundation. Thunderbird derives almost no revenue from search and other non-donor sources. Thunderbird relies heavily on the generous donations of users and friends of Thunderbird.
Thunderbird ttseggiment iwiziwen n terbaɛt Thinderbird, s umɛiwen n tkebbanit Mozilla, d afurk n tesbeddit Mozilla. Thunderbird ur d-ttawi ara abaɣur seg tedrimt n unadi neɣ tiɣbula-nniḍen beṛṛa n tewsa. Thunderbird yettkel nezzeh ɣef tewsa n yiseqdacen akked wid iḥemmlen Thunderbird.