Mozilla Thunderbird ESR (ms)

Mozilla·Mozilla.Thunderbird.ESR.ms

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.ms --exact --source winget

Latest 140.12.1·June 30, 2026

Release Notes

What’s Fixed fixed Security fixes

Installer type: nullsoft

ArchitectureScopeDownloadSHA256
x86DownloadD7DBA939D8B5692FED674130A79F1F829F76B8F8BE06F7B6E725B7A31AE26676
x64Download4303E9D09B9CD4921D56CE26DE030830F3F837D9775F38AC61ABDA311D74F739

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
x86Download8C308365FA12C9DD9D9D9F480ACDE60E91C64259FF9AF5B2169F03466FE7B3D4
x64Download3F1FDB63DBD7DF58A50E484C47EFDC3B1FD4F0B1BC75AF8EA1B5020D70CB2F9B
140.11.1
ArchitectureScopeDownloadSHA256
x86DownloadEE67DDC7D30BB92F4FDBFD0E7FA55C995A86E19EF085E8EF63514E6AB9AE35EE
x64Download8BBD101A438E7318D074565CCC3C63B0BCDB6D6E7960E6CC057D271A749B51D8
140.11.0
ArchitectureScopeDownloadSHA256
x86Download71D990452DE2D35920B6EC6F1AE3D267F3D1B6DA73701E9A0D59E51D6C7F5CB2
x64Download7896B300743A1A58A990A363EC9AF531F884EE90DA67ABE36B5300F93F33CF3A
140.10.2
ArchitectureScopeDownloadSHA256
x86DownloadADC8E31522B624680AC183866DD2C01126F7C6F4CFAD88C72F80FC84CF6A6E6E
x64DownloadD1E7A91BB9AD7E8BF127CDF2B968999F7E9975887AFC4EF4B87BACA8F765BBF1
140.10.1
ArchitectureScopeDownloadSHA256
x86Download268627332551C4E6683C81BDA31342F07585BC4B973E7F11C011FEB20F63A781
x64DownloadA170EA856F07A495B02D57A7704CA17DDDC4D3655D4FA8358DE0C803792862C6
140.10.0
ArchitectureScopeDownloadSHA256
x86Download81E7136BBA89C8E7983AEE8A11090ACC103D732DDD8CAD8828279C3494F9CD7B
x64DownloadB8A1F5CE461A892445EB4220F0FC47BA8716B0A58747B5BBD40F6DED40BBC283
140.9.1
ArchitectureScopeDownloadSHA256
x86Download9CF4D58CA0F088B572B9640E3632C28F40F93EC94437B9574C933DB13ED72614
x64DownloadA91D13F8BAE66ADCF063D64094465549A0FAA7340000DB38519FEEB25E462784
140.9.0
ArchitectureScopeDownloadSHA256
x86DownloadC2C835DD729EDC53F16CF6655D63C80C180BADE025EB28597EF62721B7BB6E45
x64DownloadE20556FB345C3C2E5212405834D7CA11628CFAFBAA32D085736BB28B13767B68
140.8.1
ArchitectureScopeDownloadSHA256
x86Download58AFFC15A795B0950A737386BBC4645CB4124F9CB0AF43E9518C438B46F7ACAA
x64Download87FAC5DBCBB7D61FF83AF43FEE4F7708C30E7A28B6BFBEB0F901532158C84F77
140.8.0
ArchitectureScopeDownloadSHA256
x86Download47D69FE94219320D18070A1A46D554D471B7B6D9DBE3665E67EE931C6A155DFB
x64Download4E15A7D45BD7356DC713843ACF60E1ED3DD4CCD335D8A734EE4FA8B69924F45F
140.7.2
ArchitectureScopeDownloadSHA256
x86DownloadCBEBE7D15A4E6679BC36D4B1E6BD2A509B0C8B5BB63EC4742E3AC1579E0E6366
x64Download945A93B3584FFEBD64F76DDFB8595C40629D07364776B90977264120D976BEB7
140.7.1
ArchitectureScopeDownloadSHA256
x86Download02A6C9D5B174F8A92F8F302EE277C246713FA85213F24D213C7762FB62B46D65
x64DownloadBDAA1514C19FF71EFBE9332CE07CA2BECD902D480E316EED6CE9CC3F77BB7B92
140.7.0
ArchitectureScopeDownloadSHA256
x86DownloadF24100613C7A96F309B27784B41758C5175E78D93FF02645A3C4587FB8663E69
x64DownloadF7A4A421E8D50E93B2C43D4EAEF9C6C69FC0FA2A081D3A6955F0B49FA9CCE7BA
140.6.0
ArchitectureScopeDownloadSHA256
x86Download27F0BBDDEBB6552378DD6E1A82471A2EB6508694E136C2576FF712EA245DCA2A
x64DownloadC600D767820C07171A4EE4982D37780D6B8E4E6C770B0224F9CAAA903BFAADBC
140.5.0
ArchitectureScopeDownloadSHA256
x86DownloadECEA16FEF424C92AB0643AF3A57DDE6073825B89E434709A41C412E9C7B16DC4
x64Download302A54FFC7B9390BB0086316A2B65611854E5F750B678BA2713622BE79C9DC31
140.4.0
ArchitectureScopeDownloadSHA256
x86DownloadAEC5658CD851CF2656184A040CABF1F8DE654D08FFFD2F0ACEA31D7EE59E01E9
x64DownloadE9395EF5EFE856413F2BB372BF2E63F012CB701B31D046F34D9C1A1959CF1763
140.3.1
ArchitectureScopeDownloadSHA256
x86DownloadC7131A511D8C91B7A143E6F6D636442CA5E01BE9B6497A1F3A6250DBEB729684
x64DownloadF1D077CC94B7743DA23125D9358D9DECEFED0CDF2CC3537F93B44552CF5D3E46
140.3.0
ArchitectureScopeDownloadSHA256
x86Download502B3FB22EDD70E34CA3EAC21B7C2292A87FE1186B531764B126F850A61F1EDE
x64Download8F73E525FD13A668843D7D4F0354254BCA7E65E306FCF44FAEF0E5A2DC41330A
140.2.1
ArchitectureScopeDownloadSHA256
x86Download1F7747AFF76C152ECAB1D7256963E7CD9ABFB50CC5C1A4EC2BA29D9A48B0073C
x64DownloadFE15FBDCCA4E81253AD90E9DF4565B6CAFFB7211A36A0CCD38B2D75A575F069E
140.2.0
ArchitectureScopeDownloadSHA256
x86Download485B7D9A90935ADFD962BA7BEB782C4D55D28256947AC198960CF07EAF3CCA31
x64DownloadE335DAC41AC6352B72968ADC7777EA2BBA038A3CE19284D8EB2133612225767A
140.1.1
ArchitectureScopeDownloadSHA256
x86DownloadBA74FAB868F22D9B5C263FCAEED65830FCE3D04E370156B7DA8159A163F0FF1C
x64DownloadD5192DA7A3D84D92507292E607B2DE5EBFB2B375E25B4B3AD3C918D0BDB0A5B4
128.14.0
ArchitectureScopeDownloadSHA256
x86DownloadFE993EBF4969C381DC8900B99BC3FE12BE257C873C49401A17ED5FEC53406B99
x64DownloadF4897E6928170D5FEF2793D11A122CE65EEA160AFF4AB8AB659ADCA92D7CA6A5
128.13.0
ArchitectureScopeDownloadSHA256
x86DownloadB0381DDD37D5715B95260397685F61C08D0CC5C944AA7AD28CEFC8A7D0D3536E
x64Download975D1A22EC9382C70A6694D27172DFCB5CBCA37194E6B75B2D02B603CB61C068
128.12.0
ArchitectureScopeDownloadSHA256
x86DownloadEE21F881EE2A0471661BFC9CAC4E9903C4A41EB022A6B73E02E06A4041914F58
x64DownloadD1C1C088779D7FB1307EB43F7C586C1712C9BCEE5218A40E6B112089EEA734F1
128.11.1
ArchitectureScopeDownloadSHA256
x86DownloadDA4CF29AA8A69FA8BDAD67482B9026B96B035632D0FE9458C877D5328A8E5B20
x64Download76F12F9DE899614958F7C6DDE8CEB733EAE4A4BB32CB352B74DC6F662AB22844
128.11.0
ArchitectureScopeDownloadSHA256
x86Download6F09349918D438CE8DEBB122C85A803F43681010BB30408C130E3094228F073D
x64Download11780603B1F87C986D887BD3D4A2E628D590666746761AD83EA6BBA4D1041206
128.10.2
ArchitectureScopeDownloadSHA256
x86Download3D0B92D829F633FD5F421F6E1827F08040E649113C5B822808862E55ABDCC415
x64DownloadD37C3F27D32C87E3AF532D1CEB33E3BFAD0A2C46B0F011F9B50E8D3408C9B16E
128.10.1
ArchitectureScopeDownloadSHA256
x86DownloadE8EB9A32ECB9FA2CC1231D4DD444295315927456C3B64A02CBEC700A6F0EAEC0
x64Download0222E8713C03B138CD2FC9D172C57A4FEC19719B44FAF85EF119659BD00777DC
128.10.0
ArchitectureScopeDownloadSHA256
x86Download3CD06FF5DC6C13C8665486A791A05AE3227E32E75EE2F63E44CFB58CFCB81AAF
x64Download281AE8535B168C06FE072F408D3D4CD185F6808D3ECF157839FB44807F168C0A
128.9.2
ArchitectureScopeDownloadSHA256
x86Download9D1222F698AE3E25013B79197D08F6B4CDB12C5E5A097F15DD9A78F6775817F2
x64Download2791FE7B5E28A07D3E3B4DF2475092FEF408508DFCC9B247242A79B360BC1366
128.9.1
ArchitectureScopeDownloadSHA256
x86DownloadF9AD1D44656F47A8430110B67959E87990F0899C077A0AE6EB67A52A7B823C0A
x64Download5935F42137E18E439D42E4A3B815F9A71B4AEA37BD8AF91C4ED3F159F53EB97C
128.9.0
ArchitectureScopeDownloadSHA256
x86Download04F314F45F00C17485701D94DF4B3A1E4AD02CBF55FF332C2B4E98CD65F7274D
x64DownloadF08B1D86045F66FD9D8B6B69B7B32F9C4E467A6A40D6139154E7B7EF2C5565DC
128.8.0
ArchitectureScopeDownloadSHA256
x86DownloadD78532C5E573D4ABF16C8742A228C0759C27868195750F56DFFEF9DF600E0D1E
x64Download8B7999E635A67CDB9C1D287BED10EE67D61377C7E1F5785F807F2B7F73F6A7C7
128.7.1
ArchitectureScopeDownloadSHA256
x86Download9D43B3195887C433FA66F9DAAE3D4BDFEB4C00A569FD02180DC3228EB584C4B2
x64Download630BA5F3C73CD4CFB4E14B2090D80A18694B24475B994F0D91B40CD7399154DB
128.7.0
ArchitectureScopeDownloadSHA256
x86Download69915734DB1D1A67E15730F2AE559811085E7367775A8A4A0940548E8E54A4F7
x64Download65440CC47A90C371431F73321E3C8D209873775FFDB4E737A25A2A73294C1883
128.6.0
ArchitectureScopeDownloadSHA256
x86DownloadD9465F3E13D70742F0BAB8A226EAA25ECA410A3EF165D01FCABA937153A24970
x64Download1FD842AA7EF84064CA9030297BEE4D94973F510D040E05F0F276824E77740E16
128.5.2
ArchitectureScopeDownloadSHA256
x86DownloadBC0130E634B74B08018701F3F5FCA5A7DFB6C9CD276A4CD62949957F32F57A2D
x64Download912B8D783C886BFD226A1480FA2744389F2E2E3B04C8BC0CFE61CC782ECD30AF
128.5.1
ArchitectureScopeDownloadSHA256
x86DownloadEC260A2DA582B209DDE64F93BF1DD4EFAEF1DEC1C0557AC7E27DF0BD64E72C7F
x64Download62AB7B157C8F34C202AA6286C3B2CE2542C9F89D4378BC451FDF71CE657B6781
128.5.0
ArchitectureScopeDownloadSHA256
x86Download7782CAAE558627459264DE5687CDD0228F7A6F816D171CCE4DF0F2E4555DA384
x64DownloadE18980B14220D30B0D404D2B754DF05730A87E09D9813943380B38F84057E5BA
128.4.4
ArchitectureScopeDownloadSHA256
x86DownloadC16F7524B3651313B1988D152E6D73C52A9592E49DE2E3F03700AE6CB8A9BF4C
x64Download30883C19C3D973A30D9A72115542A615FD7FF750C02A25A13C5D1AFA4BDE7159
128.4.3
ArchitectureScopeDownloadSHA256
x86DownloadF0001DDC85E722B773AF2BAC113EEC5F83F5FDC5D8B288D4445229D9BE18D8A4
x64DownloadFAAB13943DADF046B1702723CB9A61F2D66E430200F1066638C458B50D8B657C
128.4.2
ArchitectureScopeDownloadSHA256
x86Download22C995499BF57F39BD727B201122980728EA8ECA15C7FFE81D36AEA745EE1AEF
x64DownloadC6A02172A528D498DB49E773D4E17B55C83F565CFFAAD893C4672F15EF9DA28A
128.4.1
ArchitectureScopeDownloadSHA256
x86Download25CF384224902657436E02D650E8413105D7D937F134830FF51A0371398756A2
x64DownloadEBCA90EEDB0D3249E8E01465A7B48198293FE22F4E8B8621D2EB5C01E06A416F
128.4.0
ArchitectureScopeDownloadSHA256
x86Download2282343CC63ED9CF50A5A8CA05C2613638D02A9ABAA3181D66539B23BAAE01EB
x64Download9112E7FA30DC5185EF6F1C5CF2847BB251C5FCCA9E344D072975E68349DB15C0
128.3.3
ArchitectureScopeDownloadSHA256
x86DownloadBFC3554588120D8795F7BE121B09022B22D4AAB3C37E8AED0E80384C44506D49
x64Download1A6A2874E943CDE5818EDB942ADD7495108C9E5D7B4FB808213D45B53AB46F51
128.3.2
ArchitectureScopeDownloadSHA256
x86Download8CE8DE0F9DABD60926F71228F236EDBED1DDC463B4F3D165AD767A9C56C4C478
x64DownloadFFD404D7A99CA86DB3CC14FB475BC38C85E9507320243E337E5FB48061BED51D
128.3.1
ArchitectureScopeDownloadSHA256
x86DownloadD53BFDED07F1EA19854E3DC562D39BBA77239B192330E39C1AAD2B18BCDCABA0
x64DownloadEB302A2DEC811D88E108B9000FC0490284B8583C2C9B1ABB1B37C97D5FE0B7F6
128.3.0
ArchitectureScopeDownloadSHA256
x86DownloadF671720B90EFA8AB5D08EDA93A618EE17127E6ED5EC90B76ED9E8D6CBC864BA5
x64DownloadBB8D0177E16668E5AEB1DA348FDBE566159D08733B0A79CD47EBC85AE56B3B7C
128.2.3
ArchitectureScopeDownloadSHA256
x86DownloadC95130B8274BFD42112E62ADFB823EE8BCCA7A19A7E1783ACA2A6A2F7C321697
x64DownloadBF1C845FFB86FDE0160DEC498B07F23BBD612322BE89669FD155D6A37CF705C5
128.2.2
ArchitectureScopeDownloadSHA256
x86Download3205EC5D471A2B9807CCB932601CCAF512D7FB2CAB40EC9F5147CBD934AA5637
x64DownloadD2FB0EC35ADDAD1C4CC5EB5B6152BBF604B2D1E35D2980BC4E11319F8D6AF3DB
128.2.1
ArchitectureScopeDownloadSHA256
x86DownloadE8A0C27E137593E66B767048682795D201FA6456BA518ECBAF007CD80E09134A
x64Download1FCA92545D6008CC1BDCDEA4E5C3BA121F1ADD7BDB029DFE3E08B479CD0F8677
128.2.0
ArchitectureScopeDownloadSHA256
x86Download7466C4F28B0A77E085E6C5A9688D27D9DCE5B2D0E9AA660D80CAF1424789A3C9
x64Download43A6EBF30CAD6860E9D141C668FFAD7B6F1E5EE3524CB3E5C99181C1F4FCC5FC
128.1.1
ArchitectureScopeDownloadSHA256
x86Download811BDC0DBC443A7F5941B732BB326667F508AFCB80F57BB154B5DE37AECF2F41
x64DownloadBC1A35F6ACC066849B5C5B34B9FCD55BD8C472AF6943B2F53D988AF7C8F41F3C
128.1.0
ArchitectureScopeDownloadSHA256
x86Download3266012124F46A9354703A19273A0AE8E3621BA732EA6837E0E34B463ABEB418
x64Download604631E997C63757C697D730C89F98CCFD023E53F0E7BDDCA1E90A419B16A712