Version155.0-1
Revision1240
Size221.5 MB
LicenseMPL-2.0
Confinementstrict
Basecore22
CategoriesProductivity, Social

Mozilla Thunderbird email application

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ANNOUNCEMENT: The snap channels have changed. Action was required by July 21, 2026 to stay on ESR.

Read more about this change: https://support.mozilla.org/kb/channel-choices-thunderbird-snap-and-flatpak

Thunderbird is a free email application that’s easy to set up and customize - and it’s loaded with great features!

Update History

154.0-2 (1228) → 155.0-1 (1240)
1 Sept 2026, 08:30 UTC
153.0-2 (1201) → 154.0-2 (1228)
19 Aug 2026, 19:00 UTC
140.12.1esr-1 (1170) → 153.0-2 (1201)
22 Jul 2026, 08:45 UTC
140.12.0esr-1 (1155) → 140.12.1esr-1 (1170)
1 Jul 2026, 08:30 UTC
140.11.1esr-1 (1138) → 140.12.0esr-1 (1155)
16 Jun 2026, 06:45 UTC
140.11.0esr-1 (1117) → 140.11.1esr-1 (1138)
3 Jun 2026, 10:00 UTC
140.10.2esr-2 (1104) → 140.11.0esr-1 (1117)
20 May 2026, 08:00 UTC
140.10.1esr-2 (1093) → 140.10.2esr-2 (1104)
11 May 2026, 13:15 UTC
140.10.0esr-1 (1073) → 140.10.1esr-2 (1093)
6 May 2026, 08:30 UTC
140.9.1esr-1 (1057) → 140.10.0esr-1 (1073)
24 Apr 2026, 08:15 UTC

Published21 Dec 2017, 01:26 UTC

Last updated28 Aug 2026, 10:11 UTC

First seen13 Dec 2025, 09:47 UTC