Mozilla Thunderbird ESR (ast)

Mozilla·Mozilla.Thunderbird.ESR.ast

The official annual extended support release of Thunderbird intended for users who want all available new features on an annual basis and stability/security fixes on a monthly basis.

Thunderbird is a free and open source email, newsfeed, chat, and calendaring client, that’s easy to set up and customize. One of the core principles of Thunderbird is the use and promotion of open standards - this focus is a rejection of our world of closed platforms and services that can’t communicate with each other. We want our users to have freedom and choice in how they communicate. This is the official annual extended support release. Thie release is intended for users who want all available new features on an annual basis and stability/security fixes on a monthly basis.

winget install --id Mozilla.Thunderbird.ESR.ast --exact --source winget

Latest 140.12.1·June 30, 2026

Release Notes

What’s Fixed fixed Security fixes

Installer type: nullsoft

ArchitectureScopeDownloadSHA256
x86DownloadE1D2C10F9535B2F6BB8468533B7DDE2C02D435B21CCD0F3AD54F85B682573D3F
x64DownloadA0903AD65E1B8D9A79A2D14DBDD1B0DA62AE760D1166A0825039459502F3AB77

Details

Homepage
https://www.thunderbird.net/
License
MPL-2.0
Publisher
Mozilla
Support
https://support.mozilla.org/
Privacy Policy
https://www.mozilla.org/privacy/thunderbird/
Moniker
thunderbird-esr

Tags

emailmail

Older versions (54)

140.12.0
ArchitectureScopeDownloadSHA256
x86Download3DD39F94B31A67182F73F35BD65EE709C9513D1A131E8219B7EAC36D570B96C7
x64Download6E6BD786688B2F8671C221319BA7E357E506DC7F767730663FAFFDDD24562C7D
140.11.1
ArchitectureScopeDownloadSHA256
x86Download51F8227AE7BCB1FB1F656907BCCAB16FF3F6B6D08E48836ABC58A62593671264
x64DownloadC3D90D0B6D403D040C4FDF4D3413472016B4EF06C824CE640C0005FAA8081B20
140.11.0
ArchitectureScopeDownloadSHA256
x86Download9331292BEF780A689201969D65CF43E78F713B378F38BC540655D3A2B504A633
x64Download1FED78DB8997531A8DEF17B2F0B19F14A13ABEE60AC22714A7A14FA37C52F807
140.10.2
ArchitectureScopeDownloadSHA256
x86Download3DA6DDA70E1B9B4A9B2D63FC28241339D61416B2300F7E655126FF38C00D4FFD
x64DownloadA5395F2DF84335B13B4B3C14A443A91550AAA8E3D34A9D753DBD90C7040F3521
140.10.1
ArchitectureScopeDownloadSHA256
x86DownloadB8A5ADD4535B5F16F45D38AF049F001F9B997D630A6649515A065E3F83623124
x64Download5D272CB23A0142A9E6E89456BB1D5F4931657506997982846FC4920BA2A75A86
140.10.0
ArchitectureScopeDownloadSHA256
x86DownloadBB7453363C56400A83D32A4597974A2D745C4175182644B582395A9B796AF05A
x64Download56534B87E5195B639FD7FF021FB249D354E7167A52696EE3BE00CF054D27AD23
140.9.1
ArchitectureScopeDownloadSHA256
x86Download6B61BB25D0066C961C6440CC0F0F906E83D3A90E357E32174F7FFA8451B2ACAF
x64Download6AC758CF6F00DD79BB0585B07218562F6B0D5A8487661032B6D6CB7FC0DCC825
140.9.0
ArchitectureScopeDownloadSHA256
x86DownloadDD8A995C7B00BDA2311FD2D75112ACD3E5D586D14ECDEBD0A5368F4B95F9F7C9
x64DownloadEF30924814577DE76A751CF05A9861C56DB841241252F481875631E74173A797
140.8.1
ArchitectureScopeDownloadSHA256
x86DownloadAD68769BD4031BC5016C455FC30BB13E2EB25F275CFA328D1801B06CF106D00A
x64DownloadB58576C8864D97481796CDFF81C3782E89CCAA01F88646BF991870B40BFD3612
140.8.0
ArchitectureScopeDownloadSHA256
x86DownloadFBAB2E41524370D9E8980EBD43FC329D85375627B9B3912942D49176ED557561
x64Download75F251DF1A0A164F719602F1569E0F1F394C5F5E6FD34832723169AD66377C68
140.7.2
ArchitectureScopeDownloadSHA256
x86DownloadD772E5C75F2FE55CD1DB03247C24F7A814E94256D610FBE5AD0A88FD9075F0FB
x64DownloadA791D0A3168DA0B6EFB209DD2B125B658638D46DC26D13BBDB272F4D857D9367
140.7.1
ArchitectureScopeDownloadSHA256
x86Download279AA7E757AD552BFE2E139DC5B1EA26D3B6D231DD6048E8B5995865B9BDAAE7
x64DownloadAC6DB439D52B56B0AB541C9AA8F6FE9E5B241BD8490BC02FB6E600C2866038ED
140.7.0
ArchitectureScopeDownloadSHA256
x86DownloadE5CCD3550FFF8C067E7C2BC60B23AB0B6F7BCDA6EEA252776E62DB0A164F8106
x64Download9AA12789A95D6F023CF15C350EBCADE22D5FD431636477F2DFF1CD11DE84D6E2
140.6.0
ArchitectureScopeDownloadSHA256
x86DownloadB34A2F21C43B92F05EFAB902BFFC062BD2F1A2FF3253B7BCF7FF42AEDA0E40EC
x64DownloadD4AD8F7E5CAE1BBB4BAB5ECCC8D7CC21DB48DADA8C89E1905A8F274E260B6410
140.5.0
ArchitectureScopeDownloadSHA256
x86Download958EC446757EE160E2BABD6DC2068D05E3914866FE5BD01568FAFD876EF94BA3
x64Download70AD91B0425AB145A51A5FB90C65AB17B2A58FEB09AB7E35D77BDFF097D6E308
140.4.0
ArchitectureScopeDownloadSHA256
x86Download0F9C634709DF6069D7DD2A4494D54B2AA2FAECB8AA5F36ECE34C10FB7460BECF
x64DownloadC7C59EDCBE6A8E8151FF08252376EEAB3D8AEECDEF67A26E0FBBE4CFF62FBB1A
140.3.1
ArchitectureScopeDownloadSHA256
x86Download8784AFBED0BAAF14B18E5D8110D06083952F533964CDC37A9B61875748C8E8A2
x64Download9B2CBA8E74B0050A8D6FD297537139610B4D4801B9E2E89576403C55FE17778C
140.3.0
ArchitectureScopeDownloadSHA256
x86Download220939B3459958BE4E47FB8695C3BC8801B497988DF6BEA05D2AC3C85761DB40
x64Download5DB7AD7EFF8AD85A7D9E7E66819AA28FB49E4B753DDEBBE545467AC045CBF0A1
140.2.1
ArchitectureScopeDownloadSHA256
x86DownloadE674EE575EBDDA3FE388E0CA20473FF206548BB2655D997BF5CE2439D7855A49
x64Download62ADD3B604CDBD3C0A93ACAE8F2381A829B45C1783818814F89DB07AD10123CF
140.2.0
ArchitectureScopeDownloadSHA256
x86Download6CE7D768F3DD607FF4DA1BA4934DCD685264589F9ABEF50D8A05F1343CFD379C
x64Download5AD204EBF6914CB96DBE2FCD03469AE363A46258EC450348F80B7EEDC478E541
140.1.1
ArchitectureScopeDownloadSHA256
x86Download3A8115F01509EB8C05031190DF26C99A22695EB702FDA4CF67B43604AF675BF5
x64DownloadAD154DCF33A5F51D793BE50925A930D9761CBCFD717C0B2F50FFF9D734692417
128.14.0
ArchitectureScopeDownloadSHA256
x86DownloadD85FEA8D2F0CD5CE4B15386726C9A635FBC3C70C73B437743187DAE4FF5A3B05
x64Download21256DD429972AD43600CC5FCFF84ED194F07C48A5AA029434774BEA4E7F9E45
128.13.0
ArchitectureScopeDownloadSHA256
x86Download6DB547A3973015F7853A0A91BA0121B0C22A40C67962D63A9C3C6DFD6DE64C6C
x64Download6EDA626DC535E42B2D0260A9C25DFE21F99A7BDA4562B546A0B6D58DFDF052FA
128.12.0
ArchitectureScopeDownloadSHA256
x86DownloadA48262DA17697189DB88B3DBE7E4400686F54F8C927E9E3D65DD6363C6072DDD
x64DownloadB98DF0FB6313AB0D68115E1B89AA7AA709BC411750C458FF27E0D12C0516E9FF
128.11.1
ArchitectureScopeDownloadSHA256
x86DownloadAE41422AF42EA6E07FB156C49FEEC592672F85AE3307DB16D6A57EC1354E4D38
x64Download727B823140174530342A92C291E55C973D46EE9F15AB35656A6E1A077E99E1CE
128.11.0
ArchitectureScopeDownloadSHA256
x86DownloadEFC6D6EE921C35B0C36EA1717F13F34DDED795A725C20DAC8C8B0B486319FD27
x64DownloadE2D9701AE7012EBF8BCCF17A0E99A3907C648265843E4B7D4A6F7FDAC840BE25
128.10.2
ArchitectureScopeDownloadSHA256
x86Download747EA42FB20F5589D54ACAB900390A45AAA4D533E83EB32374DF6044817A88D0
x64DownloadA9D3E62C9C39A115757398FDD72AF7F9011A7A1D3FE9B0479FB6C5329FE9C2B6
128.10.1
ArchitectureScopeDownloadSHA256
x86Download287B97BB8BE15A42A7C43EC0D6CEED6ABB0370D7F35E5372590CC07618DFABFD
x64DownloadDFB83BCD971BA7BFA5A3D8D044B95505D8AE496E3CFAE7795458E00131E611A8
128.10.0
ArchitectureScopeDownloadSHA256
x86DownloadB541E5E9786C478AE703759D7D95BFDCF046093E76DCC66D248620E74FFD0AA7
x64DownloadFEEEB4CC4135EE081806393F20F78C25C3D42BB5DDF9E39A1CC60FF54AEAD6F3
128.9.2
ArchitectureScopeDownloadSHA256
x86DownloadD3F8EF24F102CD359CA628F055188336FFC553B03F936BBF89F2A48407B7248C
x64Download9826479988979D72E356D757FFC909DB1F2B32FB76894C511A20E4C4350BCCA6
128.9.1
ArchitectureScopeDownloadSHA256
x86Download91F775667BED9C2BCC528693C447046B022B9A96E0AD0913FEF8B43C544365F9
x64DownloadFFA317149908D28D819E1FE860C5BEF7075726F328584884EC4924668B4652E2
128.9.0
ArchitectureScopeDownloadSHA256
x86Download3289B700283AEE4F693FB39630A7252DDA46A8A8225F63B92004768505E02E2A
x64Download54F64F525A9A9808D8F5524C53C7FCF94C2507DA08F41BD4B1363C1DB2FFBC6C
128.8.0
ArchitectureScopeDownloadSHA256
x86DownloadC1ACD9519D3279AF3447999F9B9D1C94257C00FB3B9BFAD7D49E20D547A0648F
x64DownloadA813AACC7E90BF02E5A996B1A28346980AAE453B7E51DCABE3FF5446572DDA0E
128.7.1
ArchitectureScopeDownloadSHA256
x86Download5A98A6903CBC13AF7821284FBBBB8F30E881C249BD819FED67D81024555BE398
x64DownloadC3E4439AED11F2C559B3009704FA0CA7E0698E97DF04600EDA9AF5143959E0D6
128.7.0
ArchitectureScopeDownloadSHA256
x86DownloadE726BD9E253D849388EF0B27D8D37C5C5EA7AF09C8ECA11A881B8D3CADD2549A
x64Download66DC06018DAE6AC5E4709BE5BD39C343A1A6DC0E47CE6CE1D340AEF178F2ED9B
128.6.0
ArchitectureScopeDownloadSHA256
x86DownloadCAC7CB240C3C7B27C6C4D39050EF193DF2EE91469502E7ED7BAD1A0A0A1C75FC
x64Download2616F6D6BBDE9C01E42647DA00B69E8B318C4423CFBE55A4678A793B028E60C6
128.5.2
ArchitectureScopeDownloadSHA256
x86Download3234834566ACDDFB8A56A41B61984022491340598E12A8E76CBF9307C3F0C2B9
x64Download8BEDD89DBB5A59BD9DE4C2D591B247A91AFEBECEF8B7266CF915FB10B9FA207C
128.5.1
ArchitectureScopeDownloadSHA256
x86Download5A220FCE048A135989367FDC9369736B0678CAB7F731679CD22B38703FBD2721
x64Download62D603542187C4CEB3202356E2496FC7B93DFCBC9A71EF4267F06620B202BB97
128.5.0
ArchitectureScopeDownloadSHA256
x86Download655CF3501858E699AA73EBE13A276019903568464FD70712169A7E27EAB8E323
x64Download82F0365EBE98A96F8B5780639153C5DD85AEF3FEB728FA92231869B713324B63
128.4.4
ArchitectureScopeDownloadSHA256
x86DownloadD6D5D0059CB7EECD9831B90106F30B3ADF66219A6A50E13C817A67B471C4F67E
x64Download925C8CD8900D94B1F632D54E5875CD61E207B0665173D3282B525CC2AEA4B600
128.4.3
ArchitectureScopeDownloadSHA256
x86Download5566CF169F192F589789DB47BE6191F2B25D008C6FF7D6F710572A13DB1BBCE6
x64Download9DA124C7F35CAAD3D1DC34B29DB72D74F44332A23DEC1BE6E47755147C71E1EB
128.4.2
ArchitectureScopeDownloadSHA256
x86Download9B1DAF3AE68E13F88F9B4AE6FADCE29AD82CAEC74C8713B264AC6B615B28FDB4
x64Download1F2A51720B80075F89614B3A7A158DFB7270FC7ECC490516B4BCA473F2E6D416
128.4.1
ArchitectureScopeDownloadSHA256
x86DownloadE8B34BC593EF779ED5D6809CA1D2A7F94DF7C9B043B12F6F7CF50E7AB42F752C
x64Download1D3F2324BEC56C2918DC7B4F37AE094F65928DE40EBFEB5F9BCB8FB4FFA8B4B7
128.4.0
ArchitectureScopeDownloadSHA256
x86Download331BD77BAFF7DF801982983D068E98C9CC2AFC993A44CD8608F80C0F1ADFBBE1
x64DownloadAF93760906B5F6A9E62341DE41115CCBA1C70523BF8BC0DCAC1032B68081A7EB
128.3.3
ArchitectureScopeDownloadSHA256
x86Download6E68BAEEC6038B8428DADF4B2B0CC18CB4EDEAFBD8753002D4CA146A418ECFB4
x64DownloadE05DA6AEA6DEBB9607FE904B361F0956506609E248CD1C244FAFA022737F3EAD
128.3.2
ArchitectureScopeDownloadSHA256
x86Download0E5AAA19B7402340D286907A9861E8C58C1B4377074E44E0C9A23292A0C49620
x64Download5C3CAE95FE3D5086ECE00C82546F1B452EBF0056A7E5B3F727F44CD15892256D
128.3.1
ArchitectureScopeDownloadSHA256
x86Download3CF02F0614860784465A7C40901AC3A82CAA2D78E226E7F90E48879979D59B6D
x64Download789F960F708C43F33A17BA69354C58D6D6385272DD55D0F805324329913D35A1
128.3.0
ArchitectureScopeDownloadSHA256
x86DownloadEBA3D11156C6A0BC5B75E79C3F10F018D12AFF5B196DF93EF087D56584A6E433
x64Download1AA00F1042CFEEEFCC8AE61368F66EAFD9D983F310A0E550BD812975371510BD
128.2.3
ArchitectureScopeDownloadSHA256
x86Download0F58C5341CF5C78CE871FEA915B8643726679944946FDE409B4E0A2D1104FC1D
x64Download2E7AF3698478F3E117E7956C9F4DEE6B2C54B89C0221A506CAA779172E4A6D0E
128.2.2
ArchitectureScopeDownloadSHA256
x86Download68CB0876F29C2C5125C51C3EA6F631A9EE56B56549855866A243717C27E11E43
x64Download3AB701F041CD35E1C18E02DDD545ABFBF48BCD28C6E347A7523029D46E2928B8
128.2.1
ArchitectureScopeDownloadSHA256
x86Download4B5751BBDCD4435F4346A4ACD08ED6F2E00928F97835574790B9FEF38FB9331B
x64Download0120077AD3180B9AD1C46499D666C06934ABC6B8CE3B717D0CCF30B386B2E7A1
128.2.0
ArchitectureScopeDownloadSHA256
x86DownloadDD3436D6064B49A4100FD73BB944A061A5D3A7497EB74E7E2D0494343692AB9E
x64Download05FAF7CCB390F9E162202A436F496A8A99A8FCFE2D63C3E84A3A006BDA1834B1
128.1.1
ArchitectureScopeDownloadSHA256
x86Download18FDCF40B9F5DEDCE1F599E4858241F069E50EC6354C48A044E6B7F3BA301D90
x64Download7C99722913AD903E6205DA2B37D44F6D098ADF93DCB369EACCD502076F13B1D9
128.1.0
ArchitectureScopeDownloadSHA256
x86Download9AF48B92D20DC060D4FA25E1C69B727A22398000E7D466EF68AFCE3E3B83ECBB
x64Download7EBA31FA1471157653C3735EFAAF8ED0CB372D32B3D1F092B293273BFF5E31EA