Release Management/Release owners

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Release Owners

  • For any questions related to landing of particular features, Beta scheduling, preffing on/off a feature, release notes etc for a particular Firefox version on any channel, below would be the best contacts in addition to emailing release-mgmt@mozilla.com

Currently, each release manager each takes a version of Firefox and follow it from nightly through beta, and release.

Firefox Version Owner Secondary Engineering REO Release Duty¹ Corresponding ESR Release Date
Firefox 147 RyanVM (EST) Donal (EST) TBD TBD RelMan (ESR 140.7) 2026-01-13
Firefox 146 Dianna (EST) RyanVM (EST) TBD TBD RelMan (ESR 140.6) 2025-12-09
Firefox 145 Pascal (CET) Dianna (EST) TBD TBD RelMan (ESR 140.5) 2025-11-11
Firefox 144 Donal (EST) Pascal (CET) TBD TBD RelMan (ESR 140.4) 2025-10-14
Firefox 143 RyanVM (EST) Donal (EST) TBD TBD RelMan (ESR 140.3) 2025-09-16
Firefox 142 Dianna (EST) RyanVM (EST) TBD TBD RelMan (ESR 128.14, 140.2) 2025-08-19
Firefox 141 Pascal (CET) Dianna (EST) TBD TBD RelMan (ESR 128.13, 140.1) 2025-07-22
Firefox 140 Donal (EST) Pascal (CET) TBD TBD RelMan (ESR 128.12, 140.0) 2025-06-24
Firefox 139 RyanVM (EST) Donal (EST) TBD TBD RelMan (ESR 128.11) 2025-05-27
Firefox 138 Dianna (EST) RyanVM (EST) TBD TBD RelMan (ESR 128.10) 2025-04-29
Firefox 137 Pascal (CET) Donal (EST) TBD TBD RelMan (ESR 128.9) 2025-04-01
Firefox 136 Donal (EST) Pascal (CET) TBD TBD RelMan (ESR 115.21², 128.8) 2025-03-04
Firefox 135 RyanVM (EST) Donal (EST) TBD TBD RelMan (ESR 115.20², 128.7) 2025-02-04
Firefox 134 Pascal (CET) Ryan (EST) TBD jcristau (CET) RelMan (ESR 115.19², 128.6) 2025-01-07
Firefox 133 Donal (EST) Pascal (CET) Christoph Kerschbaumer (CET) bhearsum (EST) RelMan (ESR 115.18², 128.5) 2024-11-26
Firefox 132 RyanVM (EST) Donal (EST) Greg Tatum (CST) ahal (EST) RelMan (ESR 115.17², 128.4) 2024-10-29
Firefox 131 Dianna (EST) RyanVM (EST) Mike Conley (EST) hneiva (PST) RelMan (ESR 115.16², 128.3) 2024-10-01
Firefox 130 Pascal (CET) Dianna (EST) Valerie Falstad bhearsum (EST), gbrown (MST) RelMan (ESR 115.15, 128.2) 2024-09-03
Firefox 129 Donal (EST) Pascal (CET) Hsin-Yi Tsai (CET) ahal (EST), gabriel (CST) RelMan (ESR 115.14, 128.1) 2024-08-06
Firefox 128 (ESR) RyanVM (EST) Donal (EST) Daniel Holbert (PST) jcristau (CET), hneiva (PST) RelMan (ESR 115.13, 128.0) 2024-07-09
Firefox 127 Pascal (CET) RyanVM (EST) Haik Aftandilian (PST) bhearsum (EST), gbrown (MST) RelMan (ESR 115.12) 2024-06-11
Firefox 126 Donal (EST) Pascal (CET) Chris Bellini (EST) ahal (EST), gabriel (CST) RelMan (ESR 115.11) 2024-05-14
Firefox 125 RyanVM (EST) Donal (EST) None jcristau (CET), hneiva (PST) RelMan (ESR 115.10) 2024-04-16
Firefox 124 Dianna (EST) RyanVM (EST) Freddy Braun (CET) bhearsum (EST), gbrown (MST) RelMan (ESR 115.9) 2024-03-19
Firefox 123 Pascal (CET) Dianna (EST) Bob Hood (MST) ahal (EST), gabriel (CST) RelMan (ESR 115.8) 2024-02-20
Firefox 122 Donal (EST) Pascal (CET) Erik Nordin (PST) jcristau (CET), gbrown (MST) RelMan (ESR 115.7) 2024-01-23
Firefox 121 RyanVM (EST) Donal (EST) Stuart Colville bhearsum (EST), hneiva (PST) RelMan (ESR 115.6) 2023-12-19
Firefox 120 Dianna (EST) RyanVM (EST) Giorgio Natili (PST), Amir Habibi (EST) ahal (EST), gabriel (CST) RelMan (ESR 115.5) 2023-11-21
Firefox 119 Donal (EST) Dianna (EST) Will Medina (MST) jcristau (CET), bhearsum (EST) RelMan (ESR 115.4) 2023-10-24
Firefox 118 Pascal (CET) Donal (EST) Emilio Cobos masterwayz (CET), gbrown (MST) RelMan (ESR 115.3) 2023-09-26
Firefox 117 RyanVM (EST) Pascal (CET) Johan Lorenzo (CET) ahal (EST), hneiva (PST) RelMan (ESR 102.15, 115.2) 2023-08-29
Firefox 116 Dianna (EST) RyanVM (EST) Cieara Meador (EST) bhearsum (EST), gabriel (CST) RelMan (ESR 102.14, 115.1) 2023-08-01
Firefox 115 (ESR) Donal (EST) Dianna (EST) Giorgio Natili (PST) masterwayz (CET), gbrown (PST) RelMan (ESR 102.13, 115.0) 2023-07-04
Firefox 114 Pascal (CET) Donal (EST) Dan Mehic (CET) jcristau (CET), ahal (EST) RelMan (ESR 102.12) 2023-06-06
Firefox 113 RyanVM (EST) Pascal (CET) Frank Griffith (EST) bhearsum (EST), hneiva (PST) RelMan (ESR 102.11) 2023-05-09
Firefox 112 Dianna (EST) RyanVM (EST) Suhaib Mujahid (EST) jcristau (CET), gabriel (CST) RelMan (ESR 102.10) 2023-04-11
Firefox 111 Donal (EST) Dianna (EST) Jared Hirsch jlorenzo (CET), gbrown (PST) RelMan (ESR 102.9) 2023-03-14
Firefox 110 Pascal (CET) Donal (EST) Jason Prickett ahal (EST), hneiva (PST) RelMan (ESR 102.8) 2023-02-14
Firefox 109 RyanVM (EST) Pascal (CET) Gregory Hess (EST) masterwayz (CET), gabriel (CST) RelMan (ESR 102.7) 2023-01-17
Firefox 108 Dianna (EST) RyanVM (EST) Jim Mathies (EST) jlorenzo (CET), gbrown (PST) RelMan (ESR 102.6) 2022-12-13
Firefox 107 Donal (EST) Dianna (EST) Cyrus Bond jcristau (CEST), hneiva (PDT) RelMan (ESR 102.5) 2022-11-15
Firefox 106 Pascal (CET) Donal (EST) Prathiksha Guruprasad masterwayz (CEST), ahal (EDT) RelMan (ESR 102.4) 2022-10-18
Firefox 105 RyanVM (EST) Pascal (CET) Taddes Korris (EST) jlorenzo(CEST), gabriel(CDT) RelMan (ESR 102.3) 2022-09-20
Firefox 104 Dianna (EST) RyanVM (EST) Hsin-Yi Tsai jcristau(CEST), gbrown(MDT) RelMan (ESR 91.13, 102.2) 2022-08-23
Firefox 103 Donal (EST) Dianna (EST) Frank Doty ahal (EST), hneiva (PST) RelMan (ESR 91.12, 102.1) 2022-07-26
Firefox 102 (ESR) Pascal (CET) Donal (EST) Marco Castelluccio aki (MST), gabriel (CST) RelMan (ESR 91.11, 102.0) 2022-06-28
Firefox 101 RyanVM (EST) Pascal (CET) Amir Habibi jcristau (CET), gbrown (MST), masterwayz (CET) RelMan (ESR 91.10) 2022-05-31
Firefox 100 Dianna (EST) RyanVM (EST) Barret Rennie (EST) ahal (EST), hneiva (PST) RelMan (ESR 91.9) 2022-05-03
Firefox 99 Donal (EST) Dianna (EST) James Graham aki (MST), gabriel (CST) RelMan (ESR 91.8) 2022-04-05
Firefox 98 Pascal (CET) Donal (EST) Bob Hood jcristau (CET), gbrown (MST) RelMan (ESR 91.7) 2022-03-08
Firefox 97 RyanVM (EST) Donal (EST) Christian Holler (CET) ahal (EST), hneiva (PST) RelMan (ESR 91.6) 2022-02-08
Firefox 96 Dianna (EST) RyanVM (EST) Yasmin Shash (EST) sclements (GMT), jmaher (PST), gabriel (CST) RelMan (ESR 91.5) 2022-01-11
Firefox 95 Pascal (CET) Dianna (EST) Lougenia Bailey (EST) jcristau (CET), aki (MST) RelMan (ESR 91.4) 2021-12-07
Firefox 94 RyanVM Dianna Marco Castelluccio mtabara, hneiva RelMan (ESR 91.3) 2021-11-02
Firefox 93 Pascal Dianna Jan Odvarko mtabara, gbrown RelMan (ESR 78.15, 91.2) 2021-10-05
Firefox 92 RyanVM RelMan Steven DeTar sclements, ahal RelMan (ESR 78.14, 91.1) 2021-09-07
Firefox 91 (ESR) Pascal RelMan Emma Malysz mtabara, jmaher RelMan (ESR 78.13, 91.0) 2021-08-10
Firefox 90 Julien RelMan Marco Castelluccio mtabara RelMan (ESR 78.12) 2021-07-13
Firefox 89 Pascal RelMan Philip Luk mtabara RelMan (ESR 78.11) 2021-06-01
Firefox 88 RyanVM RelMan Tim Spurway mtabara, ahal RelMan (ESR 78.10) 2021-04-19
Firefox 87 Julien RyanVM Brian Grinstead mtabara RelMan (ESR 78.9) 2021-03-23
Firefox 86 Pascal RelMan Steven DeTar mtabara RelMan (ESR 78.8) 2021-02-23
Firefox 85 Julien RelMan Dave Hunt mtabara, jmaher, sclements RelMan (ESR 78.7) 2021-01-26
Firefox 84 RyanVM RelMan Brendan Dahl jlorenzo RelMan (ESR 78.6) 2020-12-15
Firefox 83 Pascal RelMan Blake Winton jlorenzo, aki RelMan (ESR 78.5) 2020-11-17
Firefox 82 Julien RelMan Janet Dragojevic jlorenzo, aki RelMan (ESR 78.4) 2020-10-20
Firefox 81 RyanVM RelMan Jens Stutte mtabara, bhearsum RelMan (ESR 78.3) 2020-09-22
Firefox 80 Julien RelMan Jim Mathies jlorenzo, aki RelMan (ESR68.12, 78.2) 2020-08-25
Firefox 79 RyanVM RelMan Kim Moir tomprince RelMan (ESR68.11, 78.1) 2020-07-28
Firefox 78 (ESR) Julien RelMan Gian-Carlo Pascutto callek RelMan (ESR68.10) 2020-06-30
Firefox 77 Pascal RelMan Rachel Tublitz rail RelMan (ESR68.9) 2020-06-02
Firefox 76 RyanVM RelMan Tim Spurway jlund Julien (ESR68.8) 2020-05-05
Firefox 75 Julien RelMan Jens Stutte jlorenzo Pascal (ESR68.7) 2020-04-07
Firefox 74 Pascal RelMan Ethan Tseng sfraser (UTC) Ryan (ESR68.6) 2020-03-10
Firefox 73 Ryan Julien Sean Voisen jlund Julien (ESR68.5) 2020-02-11
Firefox 72 Julien lizzard Jim Mathies mtabara, jlund Pascal C (ESR68.4) 2020-01-07
Firefox 71 Pascal RyanVM Florian Quèze mtabara,jlund lizzard (ESR68.3) 2019-12-03
Firefox 70 lizzard Pascal Janet Dragojevic jlund RyanVM (ESR68.2) 2019-10-22
Firefox 69 RyanVM lizzard Kate Hudson mhentges Julien (ESR68.1) 2019-09-03
Firefox 68 (ESR) Julien RyanVM plawless tomprince Pascal (ESR68.0) 2019-07-09
Firefox 67 Pascal lizzard Neha Kochar sfraser lizzard 2019-05-21
Firefox 66 Lizzard Pascal Tim Spurway mtabara, jlund RyanVM 2019-03-19
Firefox 65 RyanVM Lizzard jaws jlund, mtabara JCristau 2019-01-29
Firefox 64 Julien RyanVM overholt callek, sfraser Liz 2018-12-11
Firefox 63 Pascal Ritu David Durst rail, aki, garbas Julien 2018-10-23
Firefox 62 Lizzard Pascal Mike T jlorenzo, tomprince RyanVM 2018-09-05
Firefox 61 RyanVM Ritu Marion mtabara, jlund Julien 2018-06-26
Firefox 60 (ESR) Julien Ritu Milan aki, sfraser Liz (52.8) 2018-05-09
Firefox 59 Liz RyanVM Andrew Overholt mtabara, bhearsum RyanVM 2018-03-13
Firefox 58 Gerry Julien Mike Taylor callek, sfraser, nthomas, rok, jlund Ritu 2018-01-23
Firefox 57 Ritu Kothari Julien Cristau & Sylvestre Jim Mathies callek, jlorenzo, nthomas, sfraser, jlund Liz 2017-11-14
Firefox 56 Liz Henry Gerry Chang Panos Astithas kmoir, sfraser Julien Cristau 2017-09-26
Firefox 55 Julien Cristau Liz Henry Mike Taylor garbas, mtabara Gerry Chang 2017-08-08
Firefox 54 Gerry Chang Julien Cristau Nathan Froyd mtabara, aki Ritu 2017-06-13
Firefox 53 Liz Henry Gerry Chang Randell Jesup aki, jlorenzo Julien Cristau 2017-04-18
Firefox 52 (ESR) Julien Cristau Sylvestre RyanVM jlorenzo, jlund Gerry 2017-03-07
Firefox 51 Gerry Chang Liz Henry Milan jlund, mtabara Ritu 2017-01-24

Eng support

This lists the Regression Engineering Owner for the release. Details at https://wiki.mozilla.org/Platform#Regression_Engineering_Owner_.28REO.29

¹ - Releng Coverage Notes

As of 2022, Releng covers a given release beginning the Monday following the previous release and ending at the end of release week.

² - ESR 115 support extended

These versions provide extended security support exclusively for users of Windows 7-8.1 and macOS 10.12-10.14.