Tuesday, 14 July 2026 @ 14:01 UTC~3313,430150,790

Mozilla Firefox ESR (szl)

Mozilla·Mozilla.Firefox.ESR.szl

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

winget install --id Mozilla.Firefox.ESR.szl --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—DownloadE5E5BB82335D9A9ADC4887C5289A0D839EF00462B42E94EBBA31FC260FA12BC1
x64—DownloadBCACED34CB3D977C8D42A6901D364A8CFE61AF8115C01B2D94BC704955576DAF
arm64—Download95D8A1066B5C36EBCB86685926C1D0D82EE1C4A3FCA80F3BB544FBCBFD4C1C53

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—DownloadD986CE44C1CB8E210F9CBECAEBA067390B6F9B652B99CA7C01711C8E012C466D
x64—DownloadDC724AC17A603019E770CD703F7C2AE5E18FD7335961220ABD058ED0FFA90AAA
arm64—Download56F2B6F40786BC575233C6E7E02AD4E61947A90AE5149FE44E4CE292E61578CE
140.10.2
ArchitectureScopeDownloadSHA256
x86—Download7AB66086E865D87683EF298998B23143B8A69474B163D95F3E852BDBB999D2B6
x64—Download7E02B1190F6165AC4A0B8868871193D9ADE0F710F48F2985FF11F7E448DAD149
arm64—Download045FF223669769C5F2B326B866B5254CA9EE30AE53F9CB3C607282AF375220B4
140.10.1
ArchitectureScopeDownloadSHA256
x86—DownloadD39AA146AAF25D6BAEA8AE9AB195BD9484B1AB53650E86C5A951002314F88678
x64—DownloadD93DE822350F85EC292CAC89EF2D5DD74929E54FE7CF3C723E9C6F14CF8FEDD2
arm64—Download344D46CE2F16CD05548101E9B8E217DE850A3D280D5417E53AA0978FABDE6C90
140.10.0
ArchitectureScopeDownloadSHA256
x86—DownloadA93398D7D08FF00897BBA50922AAEC56D77461BA0AC89F0B03B6AEE3A1BE2E0F
x64—Download49C1B224CC4403EC4CB1A1E98B5DF55AEF0AD63DDB206CD5A39516A108C67630
arm64—Download3E7655A55199D468245CAAEBA294A2DFC95D3086BCACC7CFAA44C592C6963933
140.9.0
ArchitectureScopeDownloadSHA256
x86—DownloadE45F9CBBABD4377C0C2A00BD2094DCB45C1F0A1B6EB26B90D6F3DA7DE64E86F1
x64—Download59A1078A9BA433D1DD03AC9613A40B33F06B7ABA2B169FB90D31A00B8F055109
arm64—Download0441C3F8401DEBBAA0094B1502D902E516E53F421B35DFF47CE5D7ADDEAD20E4
140.8.0
ArchitectureScopeDownloadSHA256
x86—Download8A16700CABB34CA8EAEAAE4F667C17A97A6C9C4FA2F85EE6410CEABC19CE8064
x64—Download14F0FF1745CBBFA0AE6CCEDD7E991EAAF13485F8082B59495A7E5AA25FD9C0ED
arm64—Download049FF41A76CB1640F491D245240D24161EE0752019AF9D5BAA8A5A2D9588E79C
140.7.1
ArchitectureScopeDownloadSHA256
x86—DownloadDEC04C9435DA1C33DF0C55A59A4F93FBC5531BD58FB4DD8C2315CBB033CA360F
x64—Download7EBEB3C5A12792F231B50FB577A842A0360DF542E6BAF2F03C95088A8E85AE49
arm64—DownloadB74BC7B36314B19421BAA1A8F2E182D35A13F2AE06F2050553E88A5B1C018E72
140.7.0
ArchitectureScopeDownloadSHA256
x86—DownloadC8004FDEB47A644C743C8E73B3502E9AF6F3B4CB988E569CF85227B70BF39D95
x64—Download2CDE97A03385A128E954FB1DDBBF85D21D98C33FC777B9D5110195D35D0DC517
arm64—DownloadA2BE23C6508EE1B7FD6F3E893DCD18286DAB90E909CD5D5DFB53BADBEC7D75A0
140.6.0
ArchitectureScopeDownloadSHA256
x86—Download4D1C14E0B3787FF4BCC9CD46AC1CD7257AEE5818E631068F62C21A1F0578D78F
x64—DownloadA75DC9B3546AB4E29C66BE4D61513431A5F8012CEF7CD0D03519F7B9A18CB505
arm64—DownloadC3A5E9904DEB1FC300B494406D46889AA54A3264D41EB7C623EB1F2C1D0E9426
140.5.0
ArchitectureScopeDownloadSHA256
x86—Download5401267EB911488752617AE7122482C0D9B7AA9DFC03187D454F444F85C1E2F4
x64—DownloadC9A59FE0E7F65D23B031D9975F3D1B479E2A41A940FEABC8BADB3A0927FA14E2
arm64—Download5A55E74B4547684C5F7BD1C9B75BEF54FE8F735E3B455B7D25F81C41CECC104C
140.4.0
ArchitectureScopeDownloadSHA256
x86—DownloadBF8CE55BFA6646B8C781A485AA5D7EEBF07F1A3F21A5D971D1ED7850B3406C4E
x64—DownloadE68B9725662BC08C7EB3ED2BAE68E2C4C2148636FB62358FA894690A2A4002F0
arm64—DownloadB1697FCF526F52A3B85E0FAB00CCAE1B948DC3F2A6A1084C6AE158E6AE9964DB
140.3.1
ArchitectureScopeDownloadSHA256
x86—Download98898EF825406B91A96327C3492313DB2E0AC332C6E42247BF01AEA409F09895
x64—Download26C82BD7C8783CE8F8051C7B4AC13089E29C9CF489D773A5E2614AF11998DC64
arm64—DownloadC793374DC6D250A8BB767744AA60F6216FBFD83F9DC8521563462DACD1E0188E
140.3.0
ArchitectureScopeDownloadSHA256
x86—DownloadCCFE2E0FC26C80237B7009B4C6807896B01387E7BDB0B3A7FECA7E830CDD7F9F
x64—Download15534445C9F86C9A19CD3F65B1B399C4D3ED0ED39195023F6F6EAC5DE4D133A7
arm64—Download8896A8EF592052852F9E51ED241FD811BC20ADC60339E5D524B1A71433161D3A
128.14.0
ArchitectureScopeDownloadSHA256
x86—Download4463836F9810FE60D1E14543FDD226BFE3296245E37D59023AB29CA52FD3C497
x64—Download0354BDE3A123667ACFD10CCFD558734ABFC297318EF8DA2874006BC7E27152A4
arm64—DownloadEA19D6A92123EDD3913ABEB8E298746CC5E0B45BCAB8433C701834E957BD1C39
128.13.0
ArchitectureScopeDownloadSHA256
x86—DownloadA02604CC27CA557D76E0D2D36953CE9515AB7DB8F750BD7A0026EEF3EE8B1202
x64—Download54C38D56880682C6C6B7779A43764ABA888F39E2AB3640FA8BF57A4E4677F69C
arm64—Download0A21A9F720617CE65A7F8D6DE2440C6B5360C7FE2530045590F1E9B4743E142E
128.12.0
ArchitectureScopeDownloadSHA256
x86—Download93DBDA7F15A4CA0FBBDD741E7ED7746AC57F8F342C779C88687A734FD190E6EC
x64—Download880CC3C102791CCC1441A53733436D7C7C61FF8539F70AAB446C352F6343173A
arm64—DownloadD54958FF7FAC416894A80E4FB9ADE77BECFEF3F5CCB86BA0199C504250D193B8
128.11.0
ArchitectureScopeDownloadSHA256
x86—DownloadD357FF2DCD29C0ABB82BB88D38EDF5EE8FF6CD37006061C785D22EEA630B3A1E
x64—Download2BB6A18CD6A991C2D89C595EC96C2545F3F6654040DFBA386408871F190CA705
arm64—Download9E9A28025F9E0AA14FAE4CA37FF01F2DD97D1CE7AD295A49615ADE589B5DC765
128.10.1
ArchitectureScopeDownloadSHA256
x86—DownloadD1F83D909E7DAB6CE005F13A1D93805D54665F3EEB55EC7769DDE8023097C1FA
x64—DownloadBF0904E2E327C4821C2B70D0C765A13645985E9CE9F7FE5AF453995E3B9745B0
arm64—DownloadA6235666FC1B0AADD02B1757A6BD7BD6E65765D07B246E9E462AD67F36193371
128.10.0
ArchitectureScopeDownloadSHA256
x86—Download0437D487B8B45F94ED74E53367DC9239E385AAE36DC99D8498D866567C4F1E13
x64—DownloadDAAC5C3190BB13BFB5F6A2C7C23B2591DDA4A1BD8208FB2E4403F27D89C69917
arm64—DownloadF3F64A89113C1FF81B044C38189A7B4C56A71299AA399500DE2EC9200B024A4F
128.9.0
ArchitectureScopeDownloadSHA256
x86—DownloadF027EED56CAAA9B531E96417B43E5AC8B7684F9900575D23CEFFE8DFF11A9DCA
x64—DownloadE46B20438086DBA78A9C817C61FE455AE9E85726B142B8F0E3C3623700E7764F
arm64—Download0AF810912BBBE377317AC89BA27D9A2D272E6D14D4D42F8BBEF532B954AC9537
128.8.1
ArchitectureScopeDownloadSHA256
x86—DownloadAB01D81B99A4994E3E9712A7352115A5C9BD242B7E5D1661121F1888EFC2E772
x64—Download603254A51633032A8984665109A99D74C7BBB7A555CC8A4A1D4343FBD94B0121
arm64—Download6378E7D7628C2069D75643B7A256B21AA8CD458E94229CE1989D8709DE8D3DEF
128.8.0
ArchitectureScopeDownloadSHA256
x86—Download19A03A1D98A9D7B6DC02E5EC5B33886ECB370D6AEAF792975EFD11500075B297
x64—Download98925E0EA10C2CF730861D43CE0DA6ACC1B811361BBC0FA6671AEACA5EAF0590
arm64—Download8932285560093125E2A753C629735E77323CC8FEB1E786CD1C75B86F334D972E
128.7.0
ArchitectureScopeDownloadSHA256
x86—Download15304B9AB5B4F35C4DD0634021CA5EE874834548E7E8AF0F06F8F62983316E0B
x64—DownloadF76264AE0D9CE648A686A0DE4C42F3417FFF4AC79D812B694EAB6EDF161D058A
arm64—Download0742B5F797C6214350E4B7D0B72935916C9E96AEE914E80F770D86C9C06D3D8E
128.6.0
ArchitectureScopeDownloadSHA256
x86—Download9CE13EA46183AC7D8F3A2FC9EEB1D23B0802F1B7BCBEEF5F93261AE374489B8D
x64—Download9B7B5116886B00B33112F3C3F8DD240308B2A6E3A27EB4955A52D6E7A9EC2B53
arm64—DownloadB2ADD5A4CE22A214CEAEBF8FDDB7F6E699CBCB477C0850770E0FB6C02596C8D6
128.5.2
ArchitectureScopeDownloadSHA256
x86—Download9BFA5243C410EF93A1453E822325DA6755DE73465399E7AC0266EF7E0B12DBAB
x64—Download27E9377AD9050331B8DAF239F1B5B0FCB9F0AFB957C8463C6F15EBE02F62954E
arm64—Download3A32A54A1E4A416015EE9D3001BAD0DCA863CFBCE00D237B806032107C616FB7
128.5.1
ArchitectureScopeDownloadSHA256
x86—DownloadD9A118651414C00CBA5571A8D88E307D0FF2CD46DEDB189A380901AAA009AA39
x64—DownloadBB768276836764A67C5F781D6D5C34510DA782BBE1232EEFAABFFF89D9F5E9AB
arm64—Download06F43BBBE0A2CD777A5175A1B84E7037E152355AC897C94D35A059CFC4ED89A2
128.5.0
ArchitectureScopeDownloadSHA256
x86—DownloadBCB4A85E0E6AF27C9954E69B077EB170F5F98FC72E55F7EC5E353F63DC5EF34D
x64—Download273D815D9D8B07ECD7A426CF6825C261AF6C313E08FA7579F852154979879582
arm64—DownloadAA022332828F9C1A5F4C1DBF0DB0AE6067D7A4A7481DD176E01B75CB09C8FF92
128.4.0
ArchitectureScopeDownloadSHA256
x86—Download85B7467228A3A2294D70146F066C81457C54927BF44E7101BD00C4D6596E90E4
x64—DownloadD8612C4AA6D3D2E5C9B04165913127031D7958873CC5E7599DFC437A29EA3F28
arm64—DownloadC7209ACC220CBF6B81802322C2DDCD2302D21FA390037C049E7415C6FFBA7CEB
128.3.1
ArchitectureScopeDownloadSHA256
x86—Download11CC8C7C2B3821F89EC6C1286118CE3D7D39EF26D8069BC2B5D9DC6030099C3A
x64—DownloadC9738634587A1968EEB7C1D199D1467CC62B715AC033B5523A6F2F938945172A
arm64—Download6A954BACEAE84AE96D5232287D9FE931E70D04A92DE573422DDDE7A531AEC6C8
128.3.0
ArchitectureScopeDownloadSHA256
x86—Download30D0F57995267C73E6BF4778C57FFBED65CAB991C78665BA610872441F5093B2
x64—DownloadED85374FD446A938C6C24B7E330B25929720BA0E4C6BD0CE9952EE7457FEAA7F
arm64—Download493AFB3FFE9932DECB811ACEEE291F6A911E520698EB1812CF2E32376BE581B3
115.15.0
ArchitectureScopeDownloadSHA256
x86—DownloadFB5C6F68987DB0CE4B271BC7257414C072285278ECC684B440275755B08A31B9
x64—Download81559D300502CE006BEEA607AF77BA88ADF6E693A19EAA3495C81D44812A9B41
arm64—DownloadB49748A296E1BE1FDE4254153C279037A681F08380853CBA4C8BD5B97082FA0E
115.14.0
ArchitectureScopeDownloadSHA256
x86—Download3CA98EF16DC27F6AB3559D475FDB36D380350260B8018DB93D2221554F242BFB
x64—Download67A821B522EB1776A6FE3F7B631DBB07FC2D4E8DA9E9BA51A9DCFF11A421BAD2
arm64—Download71C9806263C5C1CB8F6F9FF9DBA5DAAAB07B219635723400B117882359D983B8
115.13.0
ArchitectureScopeDownloadSHA256
x86—DownloadE9BF129E53B4316672FCE1213F972828B29D048A5EA3F01A4FA1C8E8725C43DF
x64—Download964FFA91FD6C6899B7FCEF1E1E33CC983FF0BA64B2EF70FA493B7586B76F88ED
arm64—Download28B638C049EF338DF2D2A95AB12570F381F93D5D979A0F18033BEE8D53565975
115.12.0
ArchitectureScopeDownloadSHA256
x86—Download3F66AD2D305AED31AA703797469CCD1C455C264A739B42BC8853727764C99748
x64—Download6A7FBA513FDB7B3523005769E7BFC58B201BDCD9D6AEBA24824FF320807F8A84
arm64—Download2DACCC0C8265D79CAE8EA672D6B6D076B6B7EB194551AC39AC22BEF622FCDCD4
115.11.0
ArchitectureScopeDownloadSHA256
x86—Download8A3B1E4091F293ED8E6DF62D0CE859581A3BFC893D912FEAA7928254F4DBE8CD
x64—Download742A067F165A86E72AD49F30236335AF1AEA831B3168D531C16EA02976BCF25F
arm64—DownloadB1D8F80967085855471BBF905E9DF58B07D981A0BF51569772543B4C68E38C01
115.10.0
ArchitectureScopeDownloadSHA256
x86—Download2B86D000000505A86608560E8EB0A7564096863943DE9BA4C0C31F528DD9BDFB
x64—Download71117A157816E98FD7BB2ED7D7DD9D160D7F0127E69E8FAFD69CCD5469963197
arm64—DownloadD25A721878C099843C51A5D61303754C551EBF750DABA524F5434530952B88AA
115.9.1
ArchitectureScopeDownloadSHA256
x86—DownloadDDA81D2E271F20BE6177E1CA1294B86FC98936E0DF24DF996E1C4E53017C83BE
x64—Download0558A57A5ECFE1D90E97D7045047B0CC54B433E2D334FAA80FF0A0B6028892FB
arm64—Download1715F488ECBE2F8A9ACEED689C2FD08848EF0CB5B1DC5A84A998FD2E14F6F7DC
115.9.0
ArchitectureScopeDownloadSHA256
x86—DownloadCCC94561443923822D571BB652B0B3311C38F3556B88FB389BC8270F2B5357F8
x64—DownloadFB1678285F7ED84D1C819B804CC65C9D91FFD261C526355FB4EFED8FA00E7E6E
arm64—Download3FF23DD0F234A2129E0E73E40C4C79F062D572615D3D9C38B6864432961FC009
115.8.0
ArchitectureScopeDownloadSHA256
x86—Download37A0A54D9FFB16024BBC546EA4690D6AFD189D289561BEE926A81982F85D45D4
x64—Download3FD2D88D4272DDBA41E0A9C3FEF4CF94BE96A5ED3B33BBA9A19F9EB39F545CB0
arm64—DownloadCCBAB6638229EE6D78C9E142C2AF4892CDBDF3450EF3E80876160B131D62B7C4
115.7.0
ArchitectureScopeDownloadSHA256
x86—Download05823784DB835BDB070CC01F7F10307CAA2127D4F15C296224A7E2FED96C676C
x64—Download66926DF5F7C72F25D6DD9BDA5475F6DD189F90DB14EB9F3DC96CC91048E4FBC6
arm64—DownloadBD576CFA079FC1D76E08A63E49360EEFE171C4FB2B8D8C209DDD28626DE78EA2