Windows apps · Mozilla

Mozilla Thunderbird ESR (th) security updates

The latest version of Mozilla Thunderbird ESR (th) is 153.7.0, released November 10, 2026. Patch Radar has 33 security fixes for Mozilla Thunderbird ESR (th), closing 669 CVEs, 1 of which is being exploited. The newest security fix is Mozilla Thunderbird ESR (th) 153.7.0, released November 10, 2026.

1 exploited CVEs
Latest version
153.7.0
Released Nov 10, 2026
Security fixes
33
On record in Patch Radar
CVEs
669
Closed by those fixes
Exploited
1
Vendor report or CISA KEV

Security fixes, newest first

PriorityFixFixed inCVEsExploitedReleased
Urgent Mozilla Thunderbird ESR (th) 153.7.0153.7.0 45 Nov 10, 2026
Urgent Mozilla Thunderbird ESR (th) 153.4.0153.4.0 60 Sep 30, 2026
Urgent Mozilla Thunderbird ESR (th) 153.3.0153.3.0 66 Sep 16, 2026
Urgent Mozilla Thunderbird ESR (th) 153.2.0153.2.0 27 Sep 1, 2026
Urgent Mozilla Thunderbird ESR (th) 153.1.0153.1.0 40 Aug 18, 2026
Urgent Mozilla Thunderbird ESR (th) 153.0.1153.0.1 272 Jul 23, 2026
High Mozilla Thunderbird ESR (th) 140.12.0140.12.0 2 Jun 16, 2026
High Mozilla Thunderbird ESR (th) 140.11.0140.11.0 4 May 19, 2026
High Mozilla Thunderbird ESR (th) 140.10.2140.10.2 2 May 8, 2026
High Mozilla Thunderbird ESR (th) 140.10.1140.10.1 1 Apr 30, 2026
High Mozilla Thunderbird ESR (th) 140.10.0140.10.0 25 Apr 21, 2026
High Mozilla Thunderbird ESR (th) 140.9.1140.9.1 1 Apr 7, 2026
High Mozilla Thunderbird ESR (th) 140.7.2140.7.2 1 Feb 16, 2026
High Mozilla Thunderbird ESR (th) 140.4.0140.4.0 6 Oct 14, 2025
High Mozilla Thunderbird ESR (th) 140.3.0140.3.0 5 Sep 17, 2025
High Mozilla Thunderbird ESR (th) 140.1.1140.1.1 32 Aug 5, 2025
High Mozilla Thunderbird ESR (th) 128.11.1128.11.1 1 Jun 10, 2025
High Mozilla Thunderbird ESR (th) 128.11.0128.11.0 2 May 27, 2025
High Mozilla Thunderbird ESR (th) 128.10.2128.10.2 2 May 20, 2025
High Mozilla Thunderbird ESR (th) 128.10.1128.10.1 2 May 14, 2025
High Mozilla Thunderbird ESR (th) 128.10.0128.10.0 4 Apr 29, 2025
High Mozilla Thunderbird ESR (th) 128.9.2128.9.2 3 Apr 15, 2025
High Mozilla Thunderbird ESR (th) 128.9.0128.9.0 2 Apr 1, 2025
High Mozilla Thunderbird ESR (th) 128.8.0128.8.0 10 Mar 5, 2025
Urgent Mozilla Thunderbird ESR (th) 128.7.0128.7.0 10 Feb 5, 2025
High Mozilla Thunderbird ESR (th) 128.6.0128.6.0 7 Jan 8, 2025
Urgent Mozilla Thunderbird ESR (th) 128.5.0128.5.0 7 Nov 26, 2024
Routine Mozilla Thunderbird ESR (th) 128.4.3128.4.3 1 Nov 13, 2024
High Mozilla Thunderbird ESR (th) 128.4.0128.4.0 10 Oct 29, 2024
Patch now Mozilla Thunderbird ESR (th) 128.3.1128.3.1 1 1 Oct 10, 2024
High Mozilla Thunderbird ESR (th) 128.3.0128.3.0 11 Oct 2, 2024
High Mozilla Thunderbird ESR (th) 128.2.0128.2.0 6 Sep 4, 2024
High Mozilla Thunderbird ESR (th) 128.1.1128.1.1 1 Aug 22, 2024

Patch Radar data is free to use with attribution. Terms and how to credit it.

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.