Tuesday, 14 July 2026 @ 15:01 UTC~5413,429150,800

Mozilla Firefox ESR (et)

Mozilla·Mozilla.Firefox.ESR.et

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

winget install --id Mozilla.Firefox.ESR.et --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—DownloadCFA212C2A0890B0E6225A4F2C7A9827C4AFCBEFC7F0EA51D3811EEF027D362E7
x64—Download1994AEFA08F5E3873DA0EE2D1B6FFB26C688F36AEC897472FCAA221E4EA4D752
arm64—DownloadBB15C4960D45495C2FC0ECE078E10FC3CAF4853CAEE152A2B65C9CD6C5C6132B

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 (40)

140.11.0
ArchitectureScopeDownloadSHA256
x86—Download76A4A799BDFD5C65C84E91F2BB0DD50793371ECD78516A88EFC6F4ED6B99FCCF
x64—DownloadC930F4C5CB7F0C40BD3C035F2D7268911EE115D127B235D0D6B8DAA1E7BBE619
arm64—Download1F53828F6A61422CB2843BC2DAE6C9BB1BBEDBCA6049CBD52FA7B08133A910F2
140.10.2
ArchitectureScopeDownloadSHA256
x86—Download328A6B3840A3AE2A2A2AD2E732DADA6FA411C14E4AF0C78A8C8A625DF60CDBEB
x64—DownloadFAABA0A138F05F8748684913D5384C5659BA4F256E2C9A6993729A1233FFEECF
arm64—Download56E8B4C90C449267C894D0FA5DD3DF771AA15CBBA7FFDE6CCDE859B31EA6C498
140.10.1
ArchitectureScopeDownloadSHA256
x86—Download6C100419B7759E7C7432C163483C7CEB5E6838CAC291EEC9C21A302A6B5EE89B
x64—Download7AA970C973CD86B2AECB424B7BF178642CB10B055D6E1B42774C3EDDCABD9847
arm64—DownloadB098E18B204A9C9CE37F1014B3FF1585036F4E4F58057051C583562517C5A4E6
140.10.0
ArchitectureScopeDownloadSHA256
x86—Download3F8EC4F913B48F0BD6F81AD47ADAED70EB049FDE160F3F6D730C7616FC496872
x64—Download4DD4ECF265C1B5FF2A525AD814D994798085C7B28A17EBD7E4D553A18A4462C1
arm64—DownloadAF85EF5EEACA3A3AD5B9AAB9054436FF5D3888E63198682B65E953BD3A44EFED
140.9.1
ArchitectureScopeDownloadSHA256
x86—DownloadFDF735E401D49547664D13C9991A66484AEE2A40A6FB3C915FCE1793DA07EC1D
x64—Download6981C890A41644A52EA2CF4A1980D31ACC9E164B3FC22C0ABF654CA02853A980
arm64—Download56E029DB45719B1694B6DB26E5699E7382B20AD43D585B4F8D2C2EDCEF7CECA1
140.9.0
ArchitectureScopeDownloadSHA256
x86—Download0F8250FA6F5F3A1618831167FDB26EDA2F250D367F59EA752403C8BEE3627A85
x64—Download418B9F583AB9637508524A1C6113D7374EE3BE411A4436BBDFE5BFF4BCE56F82
arm64—Download5E655033DAEF7E83D7821C5CF2A0656ADEC858515971C661A793CAE896DDE388
140.8.0
ArchitectureScopeDownloadSHA256
x86—Download81D66430098B3BAB4B2A78A6E7C5A16010CA54E4691955E7AE65E5FA871B59DA
x64—DownloadCB981DE7E3CDBCC4BD5C29EB9894DDC5CF4FC85EC76EF174473FA3DF5C5811C6
arm64—Download8AC250BB84A966E56D611CD725C663C6A7A0253244E653E3B03283F1106FF62B
140.7.1
ArchitectureScopeDownloadSHA256
x86—DownloadF0AA7B7085E20BE035456DC8E4DACBD6D49686611CB2389BDC92410CCA224AA8
x64—DownloadD5F90937169A9D21F693C4AB1A8B8FB77B65106E6E64FFDC304C67769F6A2D82
arm64—DownloadBC05BC2E936D98F5E6DD50CB55069AC1B1F493C60FA7693F001E45858BFA636A
140.7.0
ArchitectureScopeDownloadSHA256
x86—DownloadFB3CF1452A956D6981F5FC7D90389B7BE34FFDB284ADFAA41602B0210217BAFE
x64—DownloadFD473FB859973B7BE636F56D883E5FE58F3E24268BC644161D413E731296092B
arm64—DownloadC423B4DB15983D5AAD69C90529F479FFDAF6FE742EC85C1DCFB5D407C3745802
140.6.0
ArchitectureScopeDownloadSHA256
x86—DownloadDBDA81FBF475D3E869F504BC2B0B5FEFAFD7FE5B1ABA2F5FDDC6BB8A1C8BD1DF
x64—Download39867FD7BFAE1713D5D9659707EDED041C731F4F772C043559EBE73DCD4DF3C5
arm64—DownloadBF14BAD0237D88B15D93848EE2DFA99F5520BD7CF9F19500BFB23D0BC4F1F69B
140.5.0
ArchitectureScopeDownloadSHA256
x86—Download89BC5768078A2ECC89BB215A3874B9B5E09D7C5C99B5E09E4BE9555F9038995A
x64—DownloadA44FBDF58B597EE7E6D00EE6A27FD01C88BCA2A3D830BED4DBCB26767C99B1CD
arm64—DownloadB82F7CB50AACD1C70A364830EC5D236C6E6B2AE105D49F8CD4D8E592382C0645
140.4.0
ArchitectureScopeDownloadSHA256
x86—Download1E92348C193D7630EA272038E56B40B08432022931AE643FB9ABDA28CC3B0693
x64—Download42138EF28F167C97AB2431E6BADAD2D95A1C120300E92FEE0F90BFE4977F4D7B
arm64—Download75A82DE0B74B8C9AB049E322831470FA3BE58D292D70E0A31B8FA72F99FA5843
140.3.1
ArchitectureScopeDownloadSHA256
x86—Download6B9AA20770D1206368B205D3EDBBB4D6C2A29182D2D4C84AA148525A793C165C
x64—Download7D90E07F81FE7B4CE91729C5D07A21091CED2B7D86BF73D3D996DEE30E7DF4AD
arm64—DownloadBB3877AE2B0253BE7DCB78A86F235C165B4566A50F44E4C234BDEB01266D31A1
140.3.0
ArchitectureScopeDownloadSHA256
x86—DownloadD8CAF58AAEA129220129830ADD6B6A0AB73F1ECFE3C54B6450BF8EE8820A9248
x64—Download501784FC40F91B0F3BB24E4FCD3BE23E4021E97C01CC6FED76CFF8A4AFF5080E
arm64—Download2DA86AA13E6C33568F77F7411B016A5C6234BBEA1096276A931C8A0B5F92539E
128.13.0
ArchitectureScopeDownloadSHA256
x86—Download5A9804DFB2D44AB54F993D49B33DEEC02165DAF988D36213AFF2026CA0C1F622
x64—Download50475A99A37851721AD1C36D38939D541996B8BEB067151F33435F2D4CDD199E
arm64—Download48721A2BFF38D2DEA57D4C91AC5A331BD7210D45B1E402025ACDEC884E43C213
128.12.0
ArchitectureScopeDownloadSHA256
x86—Download8B038BDFF57F6EB1AF465AC31675B1A751B2932A59BA5AF43B49C41EF5EEF315
x64—DownloadE8718A876653B4B2606D5FF978E62604C005F8B23C1AD657BB313E6299F556D5
arm64—DownloadDAD3D5936855647D59A149C6C65C23AD62605533F83D1633BC73ABE86014FCCC
128.11.0
ArchitectureScopeDownloadSHA256
x86—Download03870199FBBA71D913100BB4A1941CE6E30FE3D17BCEF05C2E3EC04FB3B1BEB0
x64—Download6D42F2CE66699332648C3A17D0C534747FF1927A01DCCEA01CC31B8D2AAADA2F
arm64—Download3DF918C2A179ED9EC1502D79984DFA4A918C363CCB15DAEE291E8FFE9CEC8823
128.10.1
ArchitectureScopeDownloadSHA256
x86—Download111A87E67EE7EB95979577585E640A5D011C6A54CBA515EC981FBFF83F3F5BBF
x64—Download8DDD814EE9DC458648E746E2CE6F3A7C5DB266C82B9DEDC1B5E8EE58029A6B99
arm64—Download9D9A3FA7AAD8C52EAEA99EB573D074C2E2864E9C03F665953376AC499AA6A1CA
128.10.0
ArchitectureScopeDownloadSHA256
x86—Download625B557ACE1C0B740CEC2333C369151595AA00371EEB1ACE512AA5EE7AF3CA58
x64—Download53A740728EB6FE5A474385A7F83B3A773D12D18ABB5E484E2327DC93263F0E93
arm64—Download126870735BF3663CB0EA21E9D714E5C71288704BC844BFD803FE5DDC2BC35EFB
128.9.0
ArchitectureScopeDownloadSHA256
x86—Download621BEFF5508558B792718AA710AA4849CAE7DFAA24347421598D105793AB22A4
x64—Download840215A41CF0A3DBC765DFDD1551A84C52D291ADE8F369478857C8E2999D823D
arm64—DownloadBCF97B53AD45D640899773A48C96FB2D4B9FA52BCA731F21EF0D7214C5DCD68F
128.8.1
ArchitectureScopeDownloadSHA256
x86—Download7024F7E5A75DD2FE568D1D018BC7FF9A24C7EC13C250CF2A6701910BE8B238B6
x64—DownloadF08A5A22CC3B66740606F60B4C572B2EFFF8F8DE480D7AFABAE149012F1FA415
arm64—Download1A9910A0D1E1C8B6BF82614CC220926424F1C5AA77B8FB8D6D8BCF7735DCA357
128.8.0
ArchitectureScopeDownloadSHA256
x86—Download0D845F8A418E5BE829360E758248F5D5D9B4B3F8B72F413313E0AB95B1E6864F
x64—Download407990645A914D84BB1B254268FAA3BC6A9E63D1FA355DCF7793F9920D018358
arm64—Download77F183E9306332ABA76E9493BA97820C0BD10D2AC421DCC6E20DB0F66C9A14F1
128.7.0
ArchitectureScopeDownloadSHA256
x86—Download140B8A4CE38AA416702478B9D41F5927DAEBD6C90820AA92B93164588EA61064
x64—Download6BFE0F2F40C6FFE0009002ECDADD7C1B0D995220F8FD5978262A5DFC59A9B09B
arm64—Download38EDE266449A4AE413EB9432934E8FD525FDEFE05E7641B38E125973FDAD259C
128.6.0
ArchitectureScopeDownloadSHA256
x86—DownloadC87BFD85A6E8A01145282B67B7936EEF54A1697B6ADA78BD5F38D3326FEC28CB
x64—DownloadBA5D2FFE177E04BFAC3A26103C1BE88E7719A13AC7C1FA0BE2EE7DADC81C13B4
arm64—DownloadEA01DB34D5F1CAB5B94CA8EC50DB6B49C6A2A072EBE4D09AD4A6CA292646D1C8
128.5.2
ArchitectureScopeDownloadSHA256
x86—DownloadDA308C6E4EAD982BA720131A1A9CE0FC77045CF424F8374CBC8DF284F4377497
x64—Download334A772AA2E20E2B25937CA582F4716CE3BEB9ADBC2261B25421787106E05EB9
arm64—Download6DDD2BF850E81467264488E5549CDA1681D7EF2637700254E9D077462D3C54D3
128.5.1
ArchitectureScopeDownloadSHA256
x86—Download248E3B6A4352824286CB6CAB30CA7058939D6CAC1606067CF06B9A81CD296AAD
x64—Download3BDB8F319D9C6BF606E781F7D42B94F257162A89C84D60C8A358BAE0F768F403
arm64—DownloadA7427F3F1998D35FA4247EBA31F8A550E55A371C50FC347D06E32BAD18445B3E
128.5.0
ArchitectureScopeDownloadSHA256
x86—DownloadC9947C7D6EC26D379A78ABC3043EC732CE17751D44C73A53C240433A6AD2FCDE
x64—Download3C3D9CEF53C082A838FE2BD2D33C28D9E60F0461536945566A749A9C3186FB6D
arm64—Download73D4C25CF963378268CB7755B73F6F6C1E96DE72B44078383C8A1D7611D511CF
128.4.0
ArchitectureScopeDownloadSHA256
x86—Download07BDC6A58351F264C22AC5B2747ABE1F9390D547D5809200924E0A37886F1D56
x64—Download4A0C5571F49AB6040FBB8D99BCB8EE271D5E43C26E10A7BFADF62A77CDD6AA42
arm64—DownloadFDA1561D1C054667472FA243142177706BA34A7605524742B76D179B61B7D718
128.3.1
ArchitectureScopeDownloadSHA256
x86—DownloadECC94C88D8DF833379C1E03C515EE24B5D5582F3F06F63159E98DFA6CC0FEAAD
x64—Download6443BE2D3CBAC6528A533253349AFB07B2E91B9342061291CFC28EF34908D467
arm64—DownloadD418672E61800C04976141F52BE83D065ACD130FFEF1BD0C3BF442A8535F5615
128.3.0
ArchitectureScopeDownloadSHA256
x86—DownloadCD80267889BA62303AA912F57BD6998AA5AFBEC70277C5237ADCEE6B1173E000
x64—Download68EF7453921869D044BB280F3241A1DB985CE946F8CFEABB810624C74FDD11B0
arm64—DownloadAF92CA83B230FF8E2C2B00A715D40F713191FAF1861502777A9A6E287C6393BD
115.15.0
ArchitectureScopeDownloadSHA256
x86—Download3E958A6FE2D3563BFD23DC6A60E1B8D62919D31BF38C134E1B793F898ED604B7
x64—Download205C4DA87F86BD78AC8331788022ACD0230EACFAC7FD9BEFE8864B961281110E
arm64—DownloadB438236B9D131AD6E1A02CF63EF06EDAB94E5B142A7AE00067EF7042084346FA
115.14.0
ArchitectureScopeDownloadSHA256
x86—Download0DBCFF41009AE0C5A03D8892796248F3CD28EB67964A72A87D314EFAC8B6F3E8
x64—DownloadEB23DD747392D7EEF9FF02CEA1E130747EDBFE0E7B1C7F1D0ECC758AD7374C70
arm64—Download836D05094FE72244277C8D0C1C9D4A27DFB3259DFC521B71FE09671CD20FB464
115.13.0
ArchitectureScopeDownloadSHA256
x86—Download51A552096FBAA4806C8F0CC7D30841953AAAB649449F0ED1A85F6B31955CC70A
x64—DownloadC02D234AE4EDF6E27233A6ADE5C78021F3241E2CCB70B254467C54B2668E8965
arm64—DownloadACA8B7588BD11451EB81704F76E387F0C249AA3ACB429B3454748BC55283B8ED
115.12.0
ArchitectureScopeDownloadSHA256
x86—DownloadF05A9B3BA2C4F918CAC9626840C4540C8B62A147363F22D380AE6F614C5156C8
x64—DownloadFA51E22619EC76458757B33475B73CF270521C6D6EABB6EA85E4081321FB6720
arm64—DownloadBD9B2D26AAADC0274FCD862AF447EB11D6A2A73F91246E33551122D575F02605
115.11.0
ArchitectureScopeDownloadSHA256
x86—Download653DD0EB8CCFD425502A091441BC8645E7C57ABD9B532DBA13C63D32940AD777
x64—DownloadFF86757275F957AA2F55AAB17D1747191DA6B5C6AB746DBCFB0419DF195804F7
arm64—Download1732E8EE032A1EA0F97AA9733F6DFC6CEEA7A218A45F85AFB6B54079DD6B4C64
115.10.0
ArchitectureScopeDownloadSHA256
x86—Download24713ACAEFBBC4033E928F0FD646804BDD22B141C381CCA038C35F35CF5A3189
x64—Download6B5CFF7555298DAA95CD865DB0299CEED0748956C879604EB8831145CF56A06D
arm64—Download2BDC9B0BE82DE06EB2DDAEDDA91B2EEFEB4E2233333F2A5CF9A0F973AF7EA109
115.9.1
ArchitectureScopeDownloadSHA256
x86—DownloadFC44D1056C92725155DB2AA5271D6EAF7AC0974645B2CE9319B15BA4C68648B1
x64—Download0321368EA2D995303374BD1B3AC8C04FA4E48F409255B4605E8012D0B13AAB6D
arm64—Download122B8BE5293BD2E01B79F611889FDDF429F7DB2AC44968DBA802D5676CAA3BC2
115.9.0
ArchitectureScopeDownloadSHA256
x86—Download1BEB5CE9BB5B423C68335742E53957E11B42A366FCFC837A672D37638B3D3FE3
x64—Download293BD653D91983D1CFCDC33C5F62F14235EF44CB7C02A76305822388E44E4C99
arm64—DownloadABAFBB94C0BA7E93ED72F00D6B7E9789A70C13B23B4DA4BBF380A877D8AE43DB
115.8.0
ArchitectureScopeDownloadSHA256
x86—Download44DFB657D47DDAB92595910DBB456E1336AEEBB252324F368B82C976B6903D62
x64—Download8CD1B0DACB149A44CDBC52CE1A77AAD14CF8B59DE7D4497FD95CA11143E1180D
arm64—DownloadA919329D719A8114D6BF5A513D4D326C6B014F59F9B378A26D1A682440DE4406
115.7.0
ArchitectureScopeDownloadSHA256
x86—DownloadE95647E2F3EA878FD6D5D8A5537E2B83DB1FEA47C15F804A0DF788228D003D83
x64—Download44EDE13CA0AF228D5DD40C97EC38595A879227488BE69FC94BBC4E79E291520C
arm64—DownloadD5FAAA116FD1528317B3D7C7E84781579A9A1C9148763750215518F231F5E214