Mozilla Thunderbird ESR (uk)

Mozilla·Mozilla.Thunderbird.ESR.uk

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.uk --exact --source winget

Latest 140.12.1·June 30, 2026

Release Notes

What’s Fixed fixed Security fixes

Installer type: nullsoft

ArchitectureScopeDownloadSHA256
x86DownloadE05D25CA757E42E0662CA36D6F44142AAC7405BF9859B0F822B7ADC369C1C8AE
x64Download5A26481934C1E1950FA79A0419ADD66A57C21F394293DD6AF668B145EA86DD4E

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
x86Download986FCC93F6B2BC01CCF3F304CCBC440A4B6DDA31BEDB425FCF13A1C8268FBD72
x64Download7D048185FEDB503E3A22C6A25167339CAB559EDDAA7232022DD9EA94202EDAF7
140.11.1
ArchitectureScopeDownloadSHA256
x86Download12E65483006ECCBF55F1FE4D3BBBC8C10B57F4B7B5FFF0CE47AD0BBDA881781A
x64Download70DADDA20C42F19DB38FE45C14200FCB2E4E03752AD11C5CB21F0EA7CC9CEB08
140.11.0
ArchitectureScopeDownloadSHA256
x86DownloadAE196CF7100DBFF82DF93B7537F02E9C36114D5BE481BB3FA933B96C2ACB3870
x64DownloadA0C012761882DF864BEB24BA9E0EF01E473F66E4B6074269D5D05D23FD35A379
140.10.2
ArchitectureScopeDownloadSHA256
x86Download88394C0AC42A42A0E7E2EDFAB03008A3D71EF6E1BE1E4ED6BF35BF78CBB22FD8
x64DownloadB139849E182AC63F0C3D002D8402126540F00834427CA85701BD7DA93818932C
140.10.1
ArchitectureScopeDownloadSHA256
x86DownloadCC9855C0F70AEE0ADD05E012686224E0E75501AEED8B719C4F7E5374DB8C17E6
x64DownloadE557901EE8F8DF1DF2E5B55AEE29EC3659C5E1FA1F977AFB5C1E35C2AE20F401
140.10.0
ArchitectureScopeDownloadSHA256
x86DownloadEDA604D8832B39F6D5CA66383CAC07E054D8C70CA5A5E927459CA2990716C7E2
x64Download2426CE56EEA00980DEFF593A9D18DC0663167F1238BED8EED9143B2D7230CB14
140.9.1
ArchitectureScopeDownloadSHA256
x86DownloadBDF471207C0B2611A15C1DECAD2D4827FC4A014438CF65D6F49C2E4251B542B9
x64DownloadD4A9F84EED9851F40BDD643A0E853066A081AE7081ACF8E623DE50B598CA3D00
140.9.0
ArchitectureScopeDownloadSHA256
x86Download2EE564CE41C4E2F38B5C709AEA88295EE99DF64288AA0F3273A4C621DF602E0D
x64Download66619E366B7BDAC7FBF262FADAF1B44C8D0400C547469D7CC1975EFC7E45422A
140.8.1
ArchitectureScopeDownloadSHA256
x86DownloadB3D2E62DB381FEE806B688B00E3A4C4345F6DD2E1E81B5B0CE89EFBF4143E55E
x64Download115E0B3788C7D3524A2C0879FDF7698BA0D296C38BE0654B804FCD8B5829C57D
140.8.0
ArchitectureScopeDownloadSHA256
x86DownloadBE8F5239B4810CF356EF88B25B71808B7C6DBBE3F13497505FC98693B5A47C34
x64Download33CCB47030042B5BBF4A8B52A6393CD56A263F0C0E36BB73B748A137600F8688
140.7.2
ArchitectureScopeDownloadSHA256
x86Download8D3F69ECCA7BFF9CD9C8DB2DADCDAA18C596D6188B9137971998BA0F5581315C
x64Download1B6799AEB72C10DE14B8B63A6CDD0454712C6AD91630ECF4106B6E352C88A0D8
140.7.1
ArchitectureScopeDownloadSHA256
x86DownloadA02CCE38A7B2846A16A9EEF8F4D22FDC348F5392832FFD6784AB166C809BE347
x64Download0D6F21470526C4FB7F85F4DEBEAA33685ED8D8678826B4DB40FC7E35591ACAA4
140.7.0
ArchitectureScopeDownloadSHA256
x86DownloadFC4B50F031A9D005B7DDE99C399B2894F5B1F0BC516B3DA7D55A8E7F7ED83CF8
x64DownloadB49086A101D2E1D210DEB5AD861395C59BE10E9828C1F6339F8BA48F8029F3C5
140.6.0
ArchitectureScopeDownloadSHA256
x86DownloadC90AFA83614C9AB233B3680010AB6C72D5E7C845CD8471FBA322A01517623E34
x64Download987876436A6655714715881C18A410CFEF94B959350AC5FFD021228436A6D78E
140.5.0
ArchitectureScopeDownloadSHA256
x86DownloadABB6E3DD096D8FC54ECD6C1165B302D4553448F78054B4AF12E860A729FDB594
x64Download0EC5DEF0D1C8F1B04E70DCC2C8D8CD3EE6C4DEA1D68C289EE144483C59C42C48
140.4.0
ArchitectureScopeDownloadSHA256
x86Download74B3B833201B2B5E96F2076BD873C7BC1BEF98ED1EABABA2CD4806956983D982
x64Download5D3F0CDCE8C2F0FDCC698CEA9E4EB72AD1E1178348947EAFBFAEBB6442C194A7
140.3.1
ArchitectureScopeDownloadSHA256
x86Download8212B96BAB169928893E2782B7028399610345B81D0053DD2A4DB9FA0CC9CF5B
x64DownloadB025CA4BF6992B1C6AB93C21E39C70A0A55A134D45818B1CA6FD595F49AC9B1C
140.3.0
ArchitectureScopeDownloadSHA256
x86Download3DD15E6AFDBAD1A61EB82BCAC49B6858C90DACD9F699EB41036B42FAFD8516D0
x64Download3B047A7BDDAE6612455A73425290D5FA51F26792CA393456421241A82F383FC6
140.2.1
ArchitectureScopeDownloadSHA256
x86Download5ECE352F9204DBFEDC55367F00E5129BA1561190F706EE5D774C0E4A3508A62E
x64Download12A0241D96602FE01CE921C527B7608497915DAA4D8C63E8FFC454555CB8AE22
140.2.0
ArchitectureScopeDownloadSHA256
x86Download54951D8DEEE179CB37936EBDC3DA59432B04CAA1E0418D2C6E1F72429E4273E6
x64Download33A66760CC9C142C09A02FC561A3E145E13C18BDE7465191FC53B76ACE5347DA
140.1.1
ArchitectureScopeDownloadSHA256
x86Download09F65D13A43E35AC5E866F929FA7EF8702803E425089724807A8FD30B9FC44F2
x64DownloadB864544FDCC5ECA7E72CC7D49DCC55BC20DDCC97D3D8E477AE76162F723ABB11
128.14.0
ArchitectureScopeDownloadSHA256
x86Download42BA7170ECBD74473ADAABE7B84DFF9DCD854CC93A74A0BD4836D87B4EC8D0F1
x64DownloadE4DCBAC879B9012E003C863290AD1DC3567483C122075D4FB647F91DA450B610
128.13.0
ArchitectureScopeDownloadSHA256
x86Download816E295D1DD14E8F1EF6A9E9114B3E5BA221DDA5178284AD42F0322453B20B34
x64DownloadDE87DAAFF65B73D86B5D1579D4873A98CC44A577D58592A76B9765B76DCC60E7
128.12.0
ArchitectureScopeDownloadSHA256
x86Download7A550AA4BAAED035D72C677B2E3FED9ADF2D3EDA0C0951BA64811037775075A7
x64Download793A197088B0F9CFF690FA6C21C2B6FB657FE7B0156940B417A23F74A317E3CA
128.11.1
ArchitectureScopeDownloadSHA256
x86Download724C328C0B5DF211FDC6680B6EBB59C671317E1CF86268ED9908E50C42D3A27A
x64Download006002DB75E3EBADFD7C8C0922E25E8AFB4F3A65B7BB36E7506C47D43E79965A
128.11.0
ArchitectureScopeDownloadSHA256
x86DownloadECF9ED346379BEDED3108A031340BAF297CE7A3ACA2DFDF0A8126349E2DA8CDD
x64Download4727DE619992DC80D88A854FEA98B9C6B3BB2C853DCAD291332300386243C4A7
128.10.2
ArchitectureScopeDownloadSHA256
x86DownloadEC18FC8D94AB5BF944D097ED09EEC9CBECF050BB3ACB341255E9882563A58A54
x64Download664CE285C34F1827C69CE673F3F4313861BE31A7DA8DF0FBAD09896EE9D553DF
128.10.1
ArchitectureScopeDownloadSHA256
x86DownloadB9B8B3FB1C328E40C82BAEFFB2296319C235A8A690DC3458B2ABCE72001548A7
x64DownloadB8E81480139182F5DC1627D3090742EB278BBBBA4CBB6FF33C3D97C6EAAEC011
128.10.0
ArchitectureScopeDownloadSHA256
x86Download95829FD4C6FCA6315A57AB0D223DFE7E30F5DC8D6AB4E1AADD90DF5237C20550
x64Download50902A469543A33FCF27DACE1F88C3B1C39760D51BF461E9C53B51598589448C
128.9.2
ArchitectureScopeDownloadSHA256
x86Download98D1767A52F090734AEBF5F44014F819D5301373AE59628EA08EB2A27F6D2B4B
x64Download06B48558383625FCD2A85CAD4D3FDFAE12EA5F386CD8ECFDC11B5A8249925576
128.9.1
ArchitectureScopeDownloadSHA256
x86Download2E99888022D53D78123FB3975E78B3210D2243A3F61B82562A22FFC40F371A8C
x64Download15180605F3679207208A671AE2D422F4E742A171381F584C98FB35CEBE3D6C48
128.9.0
ArchitectureScopeDownloadSHA256
x86DownloadAC4728A842C1D5ABE6AD4D3971530DB488FE1225E081929D2C46D63F8F37F56E
x64Download1549FB61677DD572A7977CFC383A0FDB118678AE79BD464595415FF99C20FD33
128.8.0
ArchitectureScopeDownloadSHA256
x86DownloadBBF391803F177E8C8AACECBAD0BFD5D5D28D7A800481EEA1FC072B09747E22F0
x64Download95AC4E8F3432906504D54E31E41201B9B4449AAB3CDCC1A2DC3283F3D7A7FCC7
128.7.1
ArchitectureScopeDownloadSHA256
x86DownloadA0CFD696C8526A02F79B69FACE9E823E721C3074A160596980068DB6B5AD459A
x64DownloadFAD9F5FA15CDB621DC033BA8FBEADEB5236D37F6F99BC3BEC1360C15828F04F0
128.7.0
ArchitectureScopeDownloadSHA256
x86Download9772B7CB4D065BA38D942E30A8525E8F25D5904AC89276BB0B89F32FF2775B94
x64Download1EA2D6B161A7AF885025EAE2F4A2F66B1746C702BA49535C96A4200BD55E1A45
128.6.0
ArchitectureScopeDownloadSHA256
x86Download9666B75BE6FBBBBEE41CB410F946B5FA35F6073A045A2DC67032CB1E18313C41
x64Download3C957B9A8F538F025430B59677EC69C57D9A3819F52B0A66391B15B317BEF407
128.5.2
ArchitectureScopeDownloadSHA256
x86DownloadCC66FB6BFEA422685D9A161266760A2C2361F37FA252A93172B2801F3D7B490A
x64Download7A7FBB24C7BE1398AF485375E0577B91F3426F2420639EBBE9518ACC1F878FB1
128.5.1
ArchitectureScopeDownloadSHA256
x86DownloadC4E044157769FB1CDF23F021D92CD3C06B2B34CC401E90C9338E87D4B50015F8
x64Download427485470C4807EC4E574DC390E734E8E67CF12545800AADAADA77B2138E42BA
128.5.0
ArchitectureScopeDownloadSHA256
x86Download3F163491A1D825CA97F7DED5FA652077A9CA37AAFB4B03A44F85A76D771ED19E
x64Download432661BC004E81D6DC3439E1CAD86104536B93359474325A026D6AC6A35360EA
128.4.4
ArchitectureScopeDownloadSHA256
x86Download616C90B7D3E132D3F8F805A05811F88A529B9BF55C0BDF0A814BE2D3E6DC852A
x64Download16BD465EAA4D5ED708E42392A5707616EA50A53E09A70F5C23734107CAD028AC
128.4.3
ArchitectureScopeDownloadSHA256
x86Download49BB9B1C83BEE6B12E6B1A9FBF84CED2F9AA51A8F471FEEF04C15C59A19FDC25
x64Download1BCC8B72E438B4E776B088AF3055C7A9D7A5E441392C00E08E7B73860679E117
128.4.2
ArchitectureScopeDownloadSHA256
x86DownloadF5A42D6DCCD89FFB0D1FBD1D1953FDBE8A4F59159A4AC615B3E70245FE4C6526
x64Download97DB9F72E7FB974A9247F1C5B3637E4B45A5A2319BED6F62B3B3561E1FDAC776
128.4.1
ArchitectureScopeDownloadSHA256
x86Download3EB61D03E9DF20B498BAD9D59E3EE84CD086B8E97B20265018FD5A13E5E5DBA2
x64Download1B0C567C56061064BD334AF7C688D49461EACDA257B70FF245588669AC6A556A
128.4.0
ArchitectureScopeDownloadSHA256
x86DownloadA7A7FB8BA65B8157E060CD5B297BE4D12FEDB14E71581A5E32C4C65137707129
x64Download23AE831891966120A06759F8907156EA256062AC6ACCC3DA4D08170F58947258
128.3.3
ArchitectureScopeDownloadSHA256
x86DownloadB448DC135743F529BAE7A3D808AFD3EA2B1D1D8E0337418C140B672C54BA4DF0
x64Download61DD870AFC63EC10BC03D73C3B0CE4C2A017C830B67FFD150884D4A035FD9B45
128.3.2
ArchitectureScopeDownloadSHA256
x86DownloadA48DE0DFF68248BA23B02360E7AB6102B4819CCFD512902FC778F490BD8056E3
x64Download4D4BDE8A1B1CA65BB1125D4F226991C6051E74BEF8FFF9329618135E3668675A
128.3.1
ArchitectureScopeDownloadSHA256
x86DownloadD802607B02844EA64C75F504A9B7294078152926376C4ECA48B9785A39724075
x64Download4E62F770C96B4EE3AA2150E6702A25BBE68DDA528C501BF6451F5C4F8AE64149
128.3.0
ArchitectureScopeDownloadSHA256
x86Download3A74958516CEA301CEE957831F012989BEADFCD8BEFDFAD67531C3BB992FCD9E
x64Download0ED8BCD1E4A762301C3C7739065A16B6822F1D9162732A693C5E5B9A06EA4092
128.2.3
ArchitectureScopeDownloadSHA256
x86Download7D7C76931C44A2538E61C53AAFDB6A67A48C08F3BB33123B55694BAEE5501E0C
x64DownloadB03B510E7763818A7C6142114AA9FADCF386226FCAFFFBA1DFBD9AF5363454CF
128.2.2
ArchitectureScopeDownloadSHA256
x86DownloadF5DE0A1922610CFECC5DA68538E4FA8553A253E8E6BA516AD17741431BCFF518
x64Download39DA4EB98FC6F9CEFAAD7AAB33600E22E290C442AFC1EAD511371C16F6A789F5
128.2.1
ArchitectureScopeDownloadSHA256
x86Download886738844CF5D07B9CADFAE460132FA26EA1D4191E146ED580B2200028ACC82C
x64DownloadD931FDE55291C5AEDC7DA86D6666744B948B77C94686D40A9539077DE676C0DC
128.2.0
ArchitectureScopeDownloadSHA256
x86Download269DC8AE6FBF425692788300933D4F42A8C9701F9FAB3F8553DF66465F62BCCF
x64Download7DDF4C68F0F89ADA265D8BC69297111716615F1553D5C91B49DB12748D665B19
128.1.1
ArchitectureScopeDownloadSHA256
x86Download6E10962CFA6121709820C862B95E7AC7CBF8B4C02195DA1C6AECA4A7E4CBFD6B
x64Download21030F0F71B9EC1D8CDB972EC32A8FB9AD620AE011D9C66D1620074D9D7B532E
128.1.0
ArchitectureScopeDownloadSHA256
x86Download772009821D708A34468D79EAF8CA63EE6E3C53C381F62C11000E655307573AE6
x64Download136E9D0A26CC07B63198E3F5DB0DF57F9CC8D971CD746F149146F2B5652F42F8