Tuesday, 14 July 2026 @ 16:01 UTC~5913,430150,826

Mozilla Firefox ESR (kk)

Mozilla·Mozilla.Firefox.ESR.kk

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

winget install --id Mozilla.Firefox.ESR.kk --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—DownloadEA7F72FF2B4FBCD1558F6DD659FDA22E14FB326B9F372053CB8E2B8EDFB5AF7F
x64—DownloadC13C3259A67A7FE1A9C36CD8B7D03CD50358B6EB2742C29F3542F0993C603DFA
arm64—Download5DDDFACBF12099056D7E3E7610BCBDEEC5BA31E57D1E553EBA6EE99C139DF58E

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—DownloadA2EA0B632926D92EB68CF1FE708FA995BA1EC9D170DD90E2D95F3C78060416A6
x64—Download0A9B81DCEA0B56BB43B478DFEE8ABB70BAC96C07111AE96367644305C20D103B
arm64—Download161FB155D7747B3E9F266FF8C64DDB150AA900BEE51667EC1E05CB2A53C5675D
140.10.2
ArchitectureScopeDownloadSHA256
x86—Download4B43D4960B69123D4866651637D7C6939BECA2515114612A5EEEDE49CD616D49
x64—DownloadF7EB4BA41767EF5D4DB86C8F36A5CD66B2D84E9CBEF3224499EC5F63F7E58F51
arm64—DownloadA50C1D0A6DD3C2658AC5D076FD09744E23ACD53B2CC7081D1447A459B6EBBC2A
140.10.1
ArchitectureScopeDownloadSHA256
x86—DownloadBA1DEE373C6F3F89D06CAA95552562B5745D55427C16B11C5D94DB7F8C9D0509
x64—Download9E9DFEA2FED28FABF9C386EAAAA1365E7A3785894CA8AB75B4E9D341FFE0D327
arm64—DownloadA64FC82E5D979BC887D44575BB68404BE94B3677E4B079FA4AA2DA007B52F9AF
140.10.0
ArchitectureScopeDownloadSHA256
x86—Download60E8E7EDC7A9718E23F932476D56600C299A09DE9A77DB8941D44A170E9F37E5
x64—DownloadDCE75438A3F3F3CCA3BB9860D0DDB20E39D168912FB58C8766CB22D076C7891B
arm64—DownloadEFCAF986204229C029A64A241508D8DCBA00F419433BED625B06CF1A819E5BB5
140.9.1
ArchitectureScopeDownloadSHA256
x86—Download881808052E83B3CEC340210CB4351AABDA576C6E2D62841AD39317AAB8DD0B24
x64—DownloadAEF93F9FD974386BFB94A2784FE6C9B225066F684B9A4EC72D48E2BC92FA7A8F
arm64—Download7D5FDCDFD31FE91C70EE9F67A59C438E1862A7E73BFDFCDB3F32AFBD7C23E7ED
140.9.0
ArchitectureScopeDownloadSHA256
x86—DownloadBA96ECDF6386F14B75CA9E3710036F776929DBB7C7991CED45478B69CB6B303A
x64—DownloadEAD5BE8DD09DE56C2256E9F0A73B7CB42BF020DE148865808EEB0BB7D5B0357E
arm64—Download7619A7F2ED5F95A442B673A2E5678211907EACBD8D0706EFD8109E20853050A6
140.8.0
ArchitectureScopeDownloadSHA256
x86—Download04C2B76D1F21F054502A2C20267E62A84F65A0C90EEDE19BB3E2CBA390CF24CB
x64—Download4FBBB7DFB5D8A992CF03F521C5AD2DE08E45C4458489D73B16EAAB0096DE705F
arm64—Download2FFF82F4BCB2D4EF2829342A1081DD985B71D2FCDE40FF2CDCE1F3E3112E11E0
140.7.1
ArchitectureScopeDownloadSHA256
x86—DownloadFC045B5359435FC94DF1E4F360A4E30A4C69C12C7412C735022EFC8168F70596
x64—Download4BC26C10BA33F9DC6EF36C0360F0A1D2CEC837A0F6D67B9E0F0D8AAE4E769214
arm64—Download081A2C31E42B733EE6E35F9C1838059D56DC2C7FD894B8EE16B00E81939677CC
140.7.0
ArchitectureScopeDownloadSHA256
x86—DownloadD2C557094FA408FCEB67D222C6D1375D112A008D98420CB1B9D247BE8ACAA4B4
x64—Download6FCF50A593B2D513DA17DE6F0D928B47374810A01E646716EC7BA9354F514E1E
arm64—DownloadDC35FFD990F4ADE28F92981FA66F615296F5031B053A9892B3AEB82D80A09353
140.6.0
ArchitectureScopeDownloadSHA256
x86—Download2EA94AA4FCEF3E9B79CBAB342C34FE6ADA5E4273DDB6FF673685571E08B40A7D
x64—DownloadB5347E6DCAFA618FF13C85BF93F5229EF75866A1808428D0587F34EB009A2DB1
arm64—Download4CAAB20DFD1BB2FC6FB55406E26F6AAA008367F6DDB929AE2838FAAC35C893E6
140.5.0
ArchitectureScopeDownloadSHA256
x86—DownloadBF876CDDB56399E359A0C2BBF949F096A15FC7134EC0A135797B41D7D455C8AB
x64—DownloadF37574405F5C88928C283084927C8F490CEDEFC40441EA49BDC826F6FF1A2DFF
arm64—Download9B1B8ABA483DB2414C7E0EFCA96EC5A55172A1D216F63EDCF94A72DACD47EBC0
140.4.0
ArchitectureScopeDownloadSHA256
x86—Download525AD52578B1C00C3805295387AB944F509824796E7DB7C1266AA6EC1108CC0B
x64—Download750473104DB5171DFD20FBB0C33E90984EAE237D21125A6B79FFAD8DA9C0C620
arm64—Download484EAF991CCF7B50784A6373D25D7614C2CE5F749B0A0C7E5D95E927D681B021
140.3.1
ArchitectureScopeDownloadSHA256
x86—Download1CC42E72D537781C1162E447633580070F70F4412D1BFEF3FE66C9A09D5698A3
x64—DownloadE8424BA3D0BF5B7DEB9B868659ED57BB4C01F5EC92AD42334CE3C857CBEAB4E5
arm64—Download48ADEBD58C77C9AC894E19BA7AF4F36136D36E03759076FC723104D216E76383
140.3.0
ArchitectureScopeDownloadSHA256
x86—Download96987268E52D630E981D7A4FA0BFA6E0A2D764822C7D7869BF3254CEFDE8BBDB
x64—Download86E9ABB5C41EECF5047E4C16B6472968B2BDF4977246E725731358DF5E8D07C8
arm64—DownloadC8CB3FB8361CC53D454803B64CB12BC848770998E11603D03E9FBD9ADE302506
128.14.0
ArchitectureScopeDownloadSHA256
x86—Download6EBA7210F5986882FA5A8EAB6BDCE778DCFDD06C39A2B12421E4543FF902A6F0
x64—DownloadB3DE8AB211701B85B3D5E4A287B897E004305A3580B7E24B8D3076DB11B3815C
arm64—Download68AF5DDAE6D1943D3E43765C302B7BA0E5EACCCC8CCA21B64A7EE790C36E3963
128.13.0
ArchitectureScopeDownloadSHA256
x86—Download19D402FE480AA6B2B505EE34781B5F6B74DD8A2EA55164414F81177A611919ED
x64—DownloadCA6CCE14C105710C39FAAF890F8A4F009DF4DF6A1C88496D4AAFD23EA7AC757C
arm64—Download9E20AA00327B6BA543B48BA53C14883E6154C1C223D2D82B6804D7E01DFE6317
128.12.0
ArchitectureScopeDownloadSHA256
x86—Download68BBF3BE670587BCE3FFA13FF660213EF0BE2BB0B1A107AD5347AA47ED18A05D
x64—DownloadB25E53C168582DD005599F5C969BA3D6203BEE7A15E5D01587B2597C7354E6E1
arm64—Download6D7B7C770A9E91BBC6572C08028D95AB77B45D9953272B842E32B802DDFBCAA3
128.11.0
ArchitectureScopeDownloadSHA256
x86—Download96D0F333543CCFF80F823E51C7C54E67098BE1FC1DF7A4592E094B2E2DF5C327
x64—Download08848B39E501933B6712EDB4F7A273666535D6C8320A11EF442627593AF6B5BF
arm64—Download8B710A42CA26FB755F89CB894EBF833B4A01BA6D46D13E012BD2C3C2FA906513
128.10.1
ArchitectureScopeDownloadSHA256
x86—Download8990107E4219C92452E74232AA2CD352B15FF44B2C7379ABB401057A40D8BAD0
x64—Download2024CA3DE86517F3DEF6BF16CA5A94C588C9647490EBB4A2CA3EA0A9942CB0D8
arm64—DownloadF46BA73DCAC6F6B8528950C9B477ABD988324F80C81797B8B43B300AAE1ED85B
128.10.0
ArchitectureScopeDownloadSHA256
x86—Download6A278EB09AE9C1E7202EE7549CAD67DCC8D40C6F60274933F7D6094DE7B229D6
x64—Download1810EA05AA77E3B69BEC03373DEA83D9679FF6477CF7DCF9C54D38E4C0D3F839
arm64—Download74EB8A6D2A78763EAA16D8AEF9AC3B62A7135DD3770237B6DA2A6E8C5244D567
128.9.0
ArchitectureScopeDownloadSHA256
x86—Download214E8AFE6FAD76DEDCCBD643442FE491DD533406B9FEB7047AE3774D86499339
x64—Download718D7FAB4DF6BF9618DA6924F1DFDC9749AF43BFF77053E0DA0CA0EA6C86F27A
arm64—DownloadE641F668CBF732A8A66A2CB2F2D2B17B7EA0237C2E979E827B2F953037F3B6A9
128.8.1
ArchitectureScopeDownloadSHA256
x86—Download76893DD70A4EB22E8D2B99D1282246D77939519719A2D149B6A16D8AD17506B6
x64—DownloadE3DFA14AA6E77BA5CED61FF4E677DBC0AF6306324064440DD9B248A03EDC430D
arm64—Download89335507B01AA3E0377B1774D431B6CF12FD9542399C0A6B6136B63796076AB4
128.8.0
ArchitectureScopeDownloadSHA256
x86—Download306511463C97A4A73E6721294D4A03FA532DB3244B6304A0C47FDE31D2277A75
x64—DownloadAC2F6AF47D4C847898D40D7A488E49CCAF03123173BC1FBDF63EC8FBC5C20E44
arm64—DownloadA007F2AD00514E949A2ED7A66AB3DCA5BB185348BC30337E18465F8DB901978B
128.7.0
ArchitectureScopeDownloadSHA256
x86—Download32C81473ADE09E5555A0465D206FEFA2EC84FCF3A12F707E2EA3F5703D7531EE
x64—Download0DD28590B4E45A1071D7EC9EFADB44043212213350911E09D3F40A72149E1B60
arm64—DownloadE4CBD22244731596D8D491EA6603C0AF36E34D95CFB841F74F189D4EDC8C2EEA
128.6.0
ArchitectureScopeDownloadSHA256
x86—Download70EBC4942FF8E03F2506EE9E06F37C66D0CB1AD4486691D0D64439997AC285FD
x64—DownloadE9D37B258D02BB7012FFD9B33A54F4D0FDF265996D3C04A4BF8B832BE97FB4A1
arm64—Download5AB9747372388A649F346C3076F1B32639FC1FAF11A886B68DD197CC1DC49BD0
128.5.2
ArchitectureScopeDownloadSHA256
x86—Download4995EA12674C9768B3DED5FD5B3794399DFB1A580EA57BFC0EC7F6E4CEBE294F
x64—DownloadC34B3C0EE2DD4824A09CBB58D8887849F88DCE589951E7566E0FF832A7DAE879
arm64—Download6D470016C2DF5DB479B14EEF7D35204D2FD931B9D851C6122120189701B73B47
128.5.1
ArchitectureScopeDownloadSHA256
x86—Download747F818B8804864D69538B4C0FCD73429C42C87FF62A94AE5DCA44150659C4E4
x64—Download0730AD8534FE9234136E9292C97196985874517C0339719C4DBC630EDBCA7C2A
arm64—Download0053A445ACBAFFC3C0C592FA253447DA9D67180760192E0F97B009F51BE08347
128.5.0
ArchitectureScopeDownloadSHA256
x86—Download7AAC1C7B285D9440FF0220AA2E4C3D2519B61D3A4206CEE7A88F84D75944AC02
x64—DownloadA26D9B7145A65840270D25E93AD85DC364740E4887987D21FA37E172582D3D07
arm64—DownloadFD50F3DAB5649E85436DB9A72A8B558780C7CE444C02241955E94B52520DAEE0
128.4.0
ArchitectureScopeDownloadSHA256
x86—Download836DC2CFA7BFA91A0E7C0BD9A8E5E321F1AAE5508D94980A4F0096BD4A8C9FC7
x64—Download510AB0760153997AD10408566EF30D0235A15DB635F51EE7322DECED0D681273
arm64—Download43E1E1A4E312C2BF00CDC0BF965366EC78270146121B952ABFEBD16A8362EA8D
128.3.1
ArchitectureScopeDownloadSHA256
x86—Download01CE3F2A7DD54EAFBF1EFD766D8C940A1F0908A4A372F51D52BA5C35B134A725
x64—Download0CB8C98837671451951E38614A17E6365BC23C49E12D254CAD63318EDEE560FA
arm64—Download330DDBD85A30C90589FF05DF201B0D25BD47AE9092C46DE9A35745D9254BC3EF
128.3.0
ArchitectureScopeDownloadSHA256
x86—Download88E488ADED68B9920D074203CC36E6524E209180284AE0449E538C73D28388D4
x64—DownloadD6853A63CC25D384D81E641FB9F0D485D6C9206552DCD13C5EDB34E42F07B93A
arm64—Download2214A5FA2ECB7C8F3D1F6A0C6D80D0DB6E28D0874F94918DBDED1949ED0D761E
115.15.0
ArchitectureScopeDownloadSHA256
x86—DownloadE6179205E425C4D62B22D5B142A02E07EFF83CED6A4C8579D5328E5AC633CBE7
x64—Download4C9B2EFAA7D560CC265088735E3234B748BC0033C35B9D7C1C5A3AF75399D11B
arm64—Download6AB905E0DF34BF24B6A5CBBECE50E0FBBD2B90B823C0DB9AB6C3AE2D4EF46F2E
115.14.0
ArchitectureScopeDownloadSHA256
x86—Download315FB105EC49A5057EC00306DAE4BF604279D2493B354EFA0C0C0BB10A797A58
x64—DownloadF0CB334E06725E1DCC043EB0AC4A12CF679894CC0BA304E1ECE247FEBAFDD938
arm64—Download23C46A5F426EA2FAA21DEEF859D48ABA16B37B4E1E9D849BDBE794F3E15A3EB4
115.13.0
ArchitectureScopeDownloadSHA256
x86—Download78372A71924340AE8FE7920848A97C1E90E9272EB7A4BE46E50D5669314F3B61
x64—DownloadCE70482F1FE9ED31D94139B7B77FEBD175F8487ECC68DB7FEF02991C2DE743D6
arm64—DownloadA3FCED496B2CCCD18C39A9B05A127DC95A0146AEDD53ED1992BC1286A0514916
115.12.0
ArchitectureScopeDownloadSHA256
x86—Download2DA3DFA356CB1BFD4A0464521AEF0713FF46AE3D935B6D149A8EFADE65CF5932
x64—Download5A1983F3256B428C7382BFEBE3CE51324409E94139385165342E70BDA02AE751
arm64—DownloadA9F595FD4B82F847A434FB5FF2DC02116C02DBAE38BBFDB0648D6D3FDEB7762D
115.11.0
ArchitectureScopeDownloadSHA256
x86—DownloadA2B2A40BBA0224AE7EF7CE96FB358E77C77CFB002D6F58BD8CD4F0C4F692E754
x64—Download34AF7B31E418C4E3A43A83E7168F5267B1B993B39610C088EA06070E703E0955
arm64—Download7994222DE903F71D13FE1379507DC60F79085969C2911CC737AB681283698DF2
115.10.0
ArchitectureScopeDownloadSHA256
x86—Download5E6AF1BFADCF0046DECDFEA65884E210A76A52B08BBCE6D04136122F53DD7673
x64—Download11C2C24128D1ECA17A275762D6E3BBCC98EE4E9EEC799DF688198FED147F90BA
arm64—Download2C26E9BAE95D969C4FEEB8050507177C35F8F9BE9E3850F13933A37E3E097606
115.9.1
ArchitectureScopeDownloadSHA256
x86—DownloadE60380A0C94983A36ECE17E93F4C5AEDFBCEEE028A6DB72322633B356EFEF15B
x64—Download3C674CDA3A3B6EFDFA5BCC25307F7F8EFFFF38708E91C19DA4A08C5BD57364D3
arm64—Download89F2D0C9A0C665E1C916127714A7995BFAD7F53A5989B4B7474437FB407DED41
115.9.0
ArchitectureScopeDownloadSHA256
x86—Download413A4BA6E1758563F1D56F0967787D2194A9C18BF53C4B374915B3B95BB4C571
x64—Download193378F4B6FEF057991AB9238D9F0755B97E0EC1CB52AD84E83040164C084D59
arm64—DownloadE7CFF30244545DBD8404C7375538D59FE593CA26D247BF427EB3BEB9EBD91FE4
115.8.0
ArchitectureScopeDownloadSHA256
x86—Download24833B00AACC545C737F7C93C936C3A45C09B79E91262F28EA4D059963DA3166
x64—Download0331FCC555A0C800245429C0263A213E437A3DC11022938317A034DD3C7A2831
arm64—Download9057063A5EE8ECD3B9417EC7B3359CA7B71500C6C8F367D56C2E91B36F61A3A6
115.7.0
ArchitectureScopeDownloadSHA256
x86—Download617F012BF32B24D7E2D85A7F1AA8F3BF4E647226C86FB818A6E5757257273580
x64—DownloadF18FB05239E897451D2AD258D87426022FB8C633D2871378F08774A7A89C7141
arm64—DownloadE27A33A883E85E114933EEA8858D1FDCE950BE2522FC4C94AA771B255258F845