Tuesday, 14 July 2026 @ 12:01 UTC~4413,429150,766

Mozilla Firefox ESR (km)

Mozilla·Mozilla.Firefox.ESR.km

Get the Firefox Extended Support Release or Rapid Release browser for comprehensive data security and data protection.

winget install --id Mozilla.Firefox.ESR.km --exact --source winget

Latest 140.12.0·June 16, 2026

Release Notes

Version 140.12.0, first offered to ESR channel users on June 16, 2026 Firefox 140 Extended Support Release (ESR) includes all of the enhancements since Firefox 128, along with many new features to make your enterprise deployments easier and even more flexible.

Fixed

  • Various security fixes.

Developer

Installer type: nullsoft

ArchitectureScopeDownloadSHA256
x86—DownloadAD1C2FE4B68B1C341CB2588F6B03631CAB516AAA558DE72530DC22EDF73EC831
x64—DownloadB82DCB0699EF853EE5AD0F00F4AE77EF53A492E95EFECD6F26DD4B12F689B718
arm64—Download37E01D2BC1C5BCF99CC6608222CCFFDB0BC7A92A6D78DC0A4DA33EA98499F181

Details

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

Tags

browsercross-platformfossgeckoquantumspidermonkeywebweb-browser

Older versions (41)

140.11.0
ArchitectureScopeDownloadSHA256
x86—Download208EC4655679D5B2A044D1C16891C90BE8A415EC2730C77C25DD521699ABA594
x64—Download32B0F1B5A5781534094548B99E090706F3EB3234DC962E0A4CC4BA03CA495A50
arm64—DownloadFCF094F80AE059FF341E206D3754F146636DCC12FDCC3BBF392D8F9393064772
140.10.2
ArchitectureScopeDownloadSHA256
x86—Download5C4FDA3083E6690255F0EEB89ED98C21274704E1AAAD002AD4A2311AEE5B6131
x64—Download0829DCE6C8F645A63D42F87BA260AC6148EFE1378F8233BD84666E0AE3672569
arm64—DownloadFEB7B25063967542729B47F5EB13A0C55951AD24020205BC0D49551BEA2FBB3C
140.10.1
ArchitectureScopeDownloadSHA256
x86—Download864EF78EA7F45903C6F6753AD702A936CEAAF7CB4CD29FA6C1B5D1D841A7890D
x64—DownloadF54FEF55509A3A9A0A5CB888A20516CEE3A0C7BFE9CAAA5E89994AD69139E7FC
arm64—Download313A025980F1A66D5C1E48AC8D986E944971D671446B2357859EC652F5B32B12
140.10.0
ArchitectureScopeDownloadSHA256
x86—Download818465347FFC7C4E5728197D3E039C83018AFF405F6412044A774D12DE0D8624
x64—Download906BB19855277B8ED7B92496866C8510370780256268A6178242E5D4BAD567D8
arm64—DownloadEC88FDD6440EF9F70B8FF305A2B93C31D91FF7767DB6210A241880EE4E04A3DB
140.9.1
ArchitectureScopeDownloadSHA256
x86—Download74F96ABB8A57D11C34CB60DE953EDAC2FE70D9BAC89865CD77247AA3AABE13BB
x64—Download7062158222C753DD0BB2C3681CD4810AAA514ABBAECF67F2134146BA9057E1FB
arm64—Download613CF87F92570B24FDFF67FB8146D45E50B2FC3B24F31780E23033A362065D92
140.9.0
ArchitectureScopeDownloadSHA256
x86—Download8A1A9F3BD302CF0BF6A349009253D346ECC750969E79296013639A4D1FCCD26F
x64—Download498D8D8A5A048A8F3B8E1D9686591D8848FA9B47BC61073C4D45E9F4797B8E29
arm64—DownloadA37A3E2949FDE9897415BFCAA77B898C3B159EC1E1415AB13F2C1D7CC00483DB
140.8.0
ArchitectureScopeDownloadSHA256
x86—Download9C9FD40607F79A8358F66FA2D2CFE9AD8FBE082896F0E4C77277F9FBB436701F
x64—Download4A4B2AE33ED3885E92CA40185DF42FE18663CAF9350D3FA8A22832FB89024051
arm64—Download488A0942C31D87D4C6749667267529E69F550E8C471F45EFDC6FB089502400B9
140.7.1
ArchitectureScopeDownloadSHA256
x86—DownloadF06ACFB3671A7CDEB199E0AAF9167CC010E5EDE3C806194A84323D22E888B507
x64—Download3FA7EC5F60BF9E47A677FC99929602003A985FD45EE87ADD1A99E1C2C768EF17
arm64—Download4CBF55B848BB8FA8FEB8E8AFC7AA14EC6CE536FAFA4CC0859E8A949AD183C82D
140.7.0
ArchitectureScopeDownloadSHA256
x86—Download3CDA1BEF7C0A95828E9BF84FCDFE700041DEC310018149B50CEC379E05ADFD0F
x64—Download78608A50D5546C6095866A2A6A7F3D257608371D8B0AC1B304084ADA93FABEC7
arm64—Download1D26AE3E007B3AE373D112DCC725AC980AC08A4D72BC468E0744B77BA4A440FC
140.6.0
ArchitectureScopeDownloadSHA256
x86—Download2A7AF5EFD1DB3E8D408123F0E5B735BA3C0E0642A8040B94A46CC196C6A6CC09
x64—DownloadD47AF1857BF679B416D810116551DAF4CDDBE2D8B0421DC6D4FAAC85E1791F9C
arm64—DownloadADE39510919E83C6AF6B3EEC364696DFC798390AEFECC55CD858A61D6B853A9F
140.5.0
ArchitectureScopeDownloadSHA256
x86—Download5FB3F1D9B954892E931A8FE32348544DD7DC5B8B80D233A7587B0979DE28927E
x64—Download80DEF6C4E77271CEA448E96CEFA0A6CDE15839061A77ECE72CB3FB5F1FE80434
arm64—Download858B1E2FB692C61AAD3AE9426A4EE70F8025BD9365342760BCB90BFED433F7C8
140.4.0
ArchitectureScopeDownloadSHA256
x86—Download885F12FF6762B1D6C4E0E2512B3C97914418A7EFD6FDAFBA20E16D1A3F92F864
x64—DownloadFA5D627FB37BDDD5705891F384E711B8A9C7AFF268204F753741E248EB8CD767
arm64—DownloadC0610B3BCC282A9D9D836642EFD2F0C2823D111A107817E6E7A656D8FE8354F3
140.3.1
ArchitectureScopeDownloadSHA256
x86—DownloadBE3BCAA0113583760DF4EFE3E7E57509FC63CA63D9D7B37D31C59D77938B388C
x64—Download438D3D1D99C40CC9414C02832FE584583E9CAD9441450DE0FF48B54F5F0ACE0E
arm64—Download74A71E11B38B67EAB8E2A2954E09303A4FE3FEBEAFC2C070256B06F60E30B5F6
140.3.0
ArchitectureScopeDownloadSHA256
x86—Download5A510270E6715EBA01263C52C1BA5871307F3C011AD2439F8F425811EB3939B6
x64—DownloadF263E8370D85317F748475BB9D4B5052B41EB3C0AF798F87C7B43E0B61F52F75
arm64—Download037968F8C4D4A063F02D4EC90A79D986EB8A4597A08C23D2F7A1CC4DA3E9875E
128.14.0
ArchitectureScopeDownloadSHA256
x86—DownloadF87322A1CA234476C4D4423BCCA5181612493507F9C48E1BB0F1E36E04A2773D
x64—Download64B5F557A71EB97DDB512C0DBCADE37A9265A7C0022652C3FE97FCB332D3EAF2
arm64—Download89F59A1D3379C4388722E1B4486D1A8A0D1963C1F4958ACA4B4BF8AAB60CC59A
128.13.0
ArchitectureScopeDownloadSHA256
x86—Download68EFF24AAD7327905B6B1CC32C7BE2BD2995982B43A4AD26FFD8B7B65F9EEE44
x64—Download6829B88CDD804CC9A1D74A6F55E83460236F63F1A6B221CE4276C898E0FAE014
arm64—Download756E96E2719916C54403BCD918732BE5297390BA17BB424E9BE2D8C857F736FB
128.12.0
ArchitectureScopeDownloadSHA256
x86—DownloadFB76F90B9631CF0FD906772910A194C256476D7C170DD63B542AB695B6E7B821
x64—Download4A9BF62F9D114C325318C2BAA0FAB5BF728998083A2063F3685D062D7C5D224C
arm64—DownloadB76514966893E96D911DF26F0EAC2A3C4A1786AEF79775551899EDA3668A28F0
128.11.0
ArchitectureScopeDownloadSHA256
x86—Download05A27A1EBAE189ABB5847D54982DE2086F89C1769DDAA0688521FF2F5E798D6D
x64—Download3A3EC3E6785B1FABD425039B180F15A004BCF6A77C137AFAC122FD1BEAAE914B
arm64—DownloadAA9CEC5C6A43AA5DD2AC742AFA9774F1B838F9960F602DDED8EC448827D5EF2B
128.10.1
ArchitectureScopeDownloadSHA256
x86—DownloadF4F583BDF162E1EDBD89365B22F7A4D28416C4AB0279FF14FFA912829C506B49
x64—Download6DAEF0D18C1066A32E032F4C27CB7A95D981EBF8D9942E2E64E0F2CBF89ECC0E
arm64—Download79BE48BB2DFB172838940C6F08B69F78A561C051DB60F0CC320638614431030E
128.10.0
ArchitectureScopeDownloadSHA256
x86—Download01F197BDA854A05C0C95E866D26CD0DD7EE031828753B08506856FE3E90C031B
x64—Download69092B9472C7A7C04907B7D9C909686BAAC53CC31DE1F3DD4CB41DD20411084E
arm64—Download97E9E688B364D6AD98F7887760C4B950BB703E8CFE041C0E9F8890B27A3B82DC
128.9.0
ArchitectureScopeDownloadSHA256
x86—DownloadEF8D3E2E0502D783370E5761FF5772EC57857743B93608DA3AB2653A4C765758
x64—Download3B15E62774C205243FC656AC5189AEEB4F50750F6055093A9DF293E5046F7865
arm64—Download0A880E90785B1CA2C289F8FBD2EA819516AFCE6A565CA709979097576A2EC656
128.8.1
ArchitectureScopeDownloadSHA256
x86—DownloadA7E2DCCDD0C8D994B510B80F6CD0E2A3C4F661B840DEB6B3C9FE793A77655B02
x64—DownloadC5149C028F4F6D33F29E56A097D3D0BFC215A72266B0883C47BA159067119422
arm64—Download1086D322E004FC4E1F13D28182FE2F4F28FD5009ED182786C04F5C2B266DBCAB
128.8.0
ArchitectureScopeDownloadSHA256
x86—Download7752DAC77A7E8CD3D7451F535FD6C41B2B626AC4B4766E28C86F30B263F24A13
x64—DownloadD2B640ACCEA64FEF9C17E1773E994DD444C3B55F8D24CB427251ECF2824C4AA0
arm64—Download22AE08855B5C1BB0F60B5726DCEA46FE2C831C99D66ED438A690CA07218F16B0
128.7.0
ArchitectureScopeDownloadSHA256
x86—Download3653BBDFED59C485B980AFEE6B7B7B446E2400D1B8FFB680313BD264AF182B2D
x64—Download4618CAC77251442348EB2BBCC2BB70EFC90F0D8FDDF4354D31C5A3AC631E9334
arm64—Download7559D48AF2FB6B15C7A2C95AC1118AEA4D997CA9821567A7B31A97CCCEE3F48F
128.6.0
ArchitectureScopeDownloadSHA256
x86—Download8845E401F9C9ABAC141BF3C4CEF3170A2403E0D4F127C447545453A9F5970F81
x64—DownloadE1B8A782A8BF462888CBA3172CFC508958525A18FB5E0EE2B472C7D4A0004374
arm64—DownloadE20A59923FAF07611306A86B274D5464BB2B45622C66AB4E711707372CFDC72C
128.5.2
ArchitectureScopeDownloadSHA256
x86—DownloadF1FC17CBD923182C447DF731F1866BE2739BB1A91911C77E68B824A4E7130980
x64—DownloadCDB4532479C5997C88B73474AA2B70F4F19EF6AF2C91E5FA0DA98D57BA53FA20
arm64—DownloadA3CBABB709A22926EE47840D004BD47A7EF7D2B9518B834161B3FFCD98CA02E6
128.5.1
ArchitectureScopeDownloadSHA256
x86—DownloadAF380F1CF9EFF598967E0EC285A6A39E4BB3095745EA77F75226663CC1EEE646
x64—Download585AA94246FE8B12A6FE24AA3AEF89C92D7431C6A69234D8E0DF1DECCEF1EB3C
arm64—DownloadA45C475B97C0CB7DC06ECF912F59BD9F91169289B8FF7DD37D5C805DC959686E
128.5.0
ArchitectureScopeDownloadSHA256
x86—Download492EB530DB0906A370412BC668D575A2003026B6EBFB781B374281A81D9CCCFF
x64—Download4ACE2064939F527B76650919FD9ED0013A907DF4C3C64C13F6CD8D1C81C96242
arm64—DownloadF8B8A0092E24BC03DC010BF6C04E78BF18BDB6E0822A7744B6F0EE9796B112D1
128.4.0
ArchitectureScopeDownloadSHA256
x86—DownloadB6FFD509FAEE5C3C24FF6CA00E20086D022631DC4AC683835B89A0C4F8A3587A
x64—Download0071FAAA6416B9691137D4517BE0D219D93A1BC8B173AA6C5C16B468AE764002
arm64—Download2FAE37BC4D0203CB46CF94408A18202F7D7D2D84C30858030905D5BBF0AAEF28
128.3.1
ArchitectureScopeDownloadSHA256
x86—Download172628F5DB834B94C85FCB13BAADA9B5BFE3DBE45EA04EB03DC855AB47A5A7F1
x64—Download8D83089D27BBDE7F58ED691C871C79A24B495A3FCE9862EABD80FA7172A6CE88
arm64—DownloadD3B35AB6D4A175A3CF94CD9136F1D1FF14AA5867567F4E4E17BF9DE960539239
128.3.0
ArchitectureScopeDownloadSHA256
x86—Download457C92750160862E2EB776C2B05A425F2EEB4E8EB8B8861D1306DD141E4EA42C
x64—Download905DF282669B727697DB24A4B2101C5850EC2FF9A20BC443CEB2EFD58B519526
arm64—DownloadF45D57AA6DC7108D7EA93363C81CDECA4796E053D4DC39A8C7E14DEE410A0556
115.15.0
ArchitectureScopeDownloadSHA256
x86—Download6B0EC13BBC6C41D5ECB08FEA0C2D520CF5D09EE390A974858A5872583512ECFB
x64—DownloadBA119B56B243F0FE6DED25803B333D40E79B7B4B30DF7FC6987E52BF82F9B0B5
arm64—Download2DC98C03227001D5818B1626B2515CB49208EA842DE5F6F9C2FF28D36ADE4509
115.14.0
ArchitectureScopeDownloadSHA256
x86—Download94F75CA4353DF164BAAEDEBC11BA548E26EC405140B7CA3B77EB420DE6E8B8CC
x64—Download80459CA1FACD57FC26086F35CA90025ABD662715303A382128544D87CAD6B238
arm64—DownloadA0BB5BB116A2CCEE61FD117C460B121CB843549647AE3D60B25798A139AAAAC6
115.13.0
ArchitectureScopeDownloadSHA256
x86—DownloadC281E2752C1760BDC53E6D3F65022F9645082C482785D1874DB4B4041DC0E0B7
x64—DownloadE76DB13063CEEE871D779199014AE58FDB83342A408250E1D1D0661ABF8F8256
arm64—Download364E742720AE43423F871D59453DE7C90C6D859A5534285D65FE43BEB1297DC5
115.12.0
ArchitectureScopeDownloadSHA256
x86—Download150A28BAB42317F038190ABD520713A952945AC2BA430AE2FB8322ED53B2E544
x64—Download617DE6CC53B124281A764347918EC82536C7DBA3EAC9D9E8661CE42865B1737E
arm64—DownloadB45A64082AF24C8B339E5740933E84E2A738FB7F37C55D3FA3D4D63383208863
115.11.0
ArchitectureScopeDownloadSHA256
x86—Download8ED4330809176C224C9A5BBC9EA96D27A735FCA0BC85154D440495F09A0197EB
x64—DownloadA32B4C421DBBAB29E7C0E46EF3F1B034BB112A6E61E2158BD0983581CBEFE276
arm64—Download1A92A22AD3C7F49957748805CE578E6732656FAA80BF0BB68D7711CE1ED228C5
115.10.0
ArchitectureScopeDownloadSHA256
x86—Download1BDB0A6238F2C0CF94AD6FA8CD57DC4B710C9649CBADF5A5B99E9E0499938740
x64—Download57E17768560C27CC96F1C9BEAB9198760EE81EFE55EADE5FE78969F29092D80B
arm64—DownloadF065E5D35DA7356B1EF01C22247367897BE1D50ABF1342F9A6E6036682B676EA
115.9.1
ArchitectureScopeDownloadSHA256
x86—DownloadC3C8F971662492541D76537E3ECFEA77C10732A7B1767E3229839FBA42A61F1A
x64—Download90F4C3F2EBD52C4D078926C02DF91C9BC50F40ECF52FAC6CAD871FBAE204B6A9
arm64—DownloadDA097126125C58D8E571A40B93339F062491AB8D00BB1D9CE62A9CCF398DEC26
115.9.0
ArchitectureScopeDownloadSHA256
x86—Download61437E5BEE580D3A13962D65EFE279B35A9131534DB45D440329801F355CB793
x64—Download19A1F36B8929A49CC855ED87C0F25AAAD8C5774D05AE1EFB246FA9AB92C1C838
arm64—Download8E6ADA308B2E536D43963A929E984888A657E8ACDD0E4D4CAD92324511EC0107
115.8.0
ArchitectureScopeDownloadSHA256
x86—DownloadB10A92E48407992A2FB2799C4E1D73C365B2CF3A51BA0A9075A1A151E5699B67
x64—Download0E9A492E3BFA423657485BD9DD1417038A42E02DE705D862A225B4B692CE5542
arm64—DownloadCC8928A9ADC86D4229CC259EF4C5AFB034B6F45C24CCAB7DB104FA55F5CBD344
115.7.0
ArchitectureScopeDownloadSHA256
x86—Download55E6C4F362EB15C01E6F4621CF6ECE825AEFA31801E62DE0C6703368D74F67EF
x64—Download9CAD03200F587A8A4CAF6A033A4C83EA34B823DB07BCD1234FA5746E916625D3
arm64—Download28106D41AC11860E7392F0439E13BD2FFED4F92913FE2A43C3B5A70FC9558B47