Mozilla Firefox Release Schedule

Melanie Gross
Aug 16, 2012
Updated • Sep 13, 2023
Added release schedule for the year 2022.
Firefox
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The Firefox Release Schedule overview offers information about past, present and future releases of the Mozilla Firefox web browser.

With three different versions of the Firefox web browser available at any time (Stable, Beta, Nightly), plus special builds that pop up every now and then and ESR versions, it is quite difficult to keep up with the browser's rapid release schedule.

To make matters even more complicated, some versions like the nightly versions get updated fairly often. To bring order into chaos, release schedules usually only concentrate on version increases and not all the updates that get released.

Mozilla's official Release Schedule page lists only the next version upgrade for Firefox stable, beta, aurora and nightly, but does not go beyond that. (Update: That changed with the introduction of the Rapid Release Calendar)

While you can try to calculate the releases after the next by adding 42 days to a fixed release date, actual release dates may fluctuate especially for the beta and aurora version increases.

Update 2 (2019): Firefox will be released every four weeks from 2020 onward.

Update (2016): Mozilla announced the move to a variable Firefox release schedule recently.

Firefox Release Schedule

mozilla firefox release schedule

The table currently covers all upcoming releases for the year, and even provides an outlook of the first releases of next year.

Mozilla Firefox Release Schedule

Our Firefox release schedule lists all Firefox versions, meaning Firefox Stable, Beta, Nightly, and ESR, the version they are updated to, and the date this is going to happen.

It won't reference minor version updates as those are not scheduled usually but pushed out when required.

  • Firefox 117, Beta 118, Nightly 119, Firefox ESR 102.15, Firefox ESR 115.2 -- 29.08.2023
  • Firefox 118, Beta 119, Nightly 120, Firefox ESR 115.3 -- 26.09.2023
  • Firefox 119, Beta 120, Nightly 121, Firefox ESR 115.4 -- 24.10.2023
  • Firefox 120, Beta 121, Nightly 122, Firefox ESR 115.5 -- 21.11.2023
  • Firefox 121, Beta 122, Nightly 123, Firefox ESR 115.6 -- 19.12.2023
  • Firefox 122, Beta 123, Nightly 124, Firefox ESR 115.7 -- 23.01.2024
  • Firefox 123, Beta 124, Nightly 125, Firefox ESR 115.8 -- 20.02.2024
  • Firefox 124, Beta 125, Nightly 126, Firefox ESR 115.9 -- 19.03.2024
  • Firefox 125, Beta 126, Nightly 127, Firefox ESR 115.10 -- 16.04.2024
  • Firefox 126, Beta 127, Nightly 128, Firefox ESR 115.11 -- 14.05.2024
  • Firefox 127, Beta 128, Nightly 129, Firefox ESR 115.12 -- 11.06.2024
  • Firefox 128, Beta 129, Nightly 130, Firefox ESR 115.13, Firefox ESR 128.0 -- 09.07.2024
  • Firefox 129. Beta 130, Nightly 131, Firefox ESR 115.14, Firefox ESR 128.1 -- 06.08.2024
  • Firefox 130, Beta 131, Nightly 132, Firefox ESR 115.15, Firefox ESR 128.2 -- 03.09.2024
  • Firefox 131, Beta 132, Nightly 133, Firefox ESR 128.3 -- 01.10.2024
  • Firefox 132, Beta 133, Nightly 134, Firefox ESR 128.4 -- 29.10.2024
  • Firefox 133, Beta 134, Nightly 135, Firefox ESR 128.5 -- 26.11.2024
  • Firefox 134, Beta 135, Nightly 136, Firefox ESR 128.6 -- 07.01.2025
  • Firefox 135, Beta 136, Nightly 137, Firefox ESR 128.7 -- 04.02.2025

Past Firefox Releases

This is the list of past releases for Firefox. While it is not recommended to run any of those versions anymore, it may be used for reference.

  • Firefox 15, Beta 16, Aurora 17 - 28.8.2012
  • Firefox 16, Beta 17, Aurora 18 - 9.10.2012
  • Firefox 17, Beta 18, Aurora 19 - 20.11.2012
  • Firefox 18, Beta 19, Aurora 20 - 8.1.2013
  • Firefox 19, Beta 20, Aurora 21 - 19.2.2013
  • Firefox 20, Beta 21, Aurora 22 - 2.4.2013
  • Firefox 21, Beta 22, Aurora 23 - 14.5.2013
  • Firefox 22, Beta 23, Aurora 24 - 25.6.2013
  • Firefox 23, Beta 24, Aurora 25 - 27.6.2013
  • Firefox 24, Beta 25, Aurora 26, Firefox 24.0 ESR - 17.9.2013
  • Firefox 25, Beta 26, Aurora 27, Firefox 24.1 ESR - 29.10.2013
  • Firefox 26, Beta 27, Aurora 28, Firefox 24.2 ESR - 10.12.2013
  • Firefox 27, Beta 28, Aurora 29, Firefox 24.3 ESR - 21.1.2014
  • Firefox 28, Beta 29, Aurora 30, Nightly 31, Firefox 24.4 ESR - 4.3.2014
  • Firefox 29, Beta 30, Aurora 31, Nightly 32, Firefox 24.5 ESR - 29.4.2014
  • Firefox 30, Beta 31, Aurora 32, Nightly 33, Firefox 24.6 ESR - 10.6.2014
  • Firefox 31, Beta 32, Aurora 33, Nightly 34 Firefox 31.0 ESR - 22.7.2014
  • Firefox 32, Beta 33, Aurora 34, Nightly 35, Firefox 31.1 ESR -2.9.2014
  • Firefox 33, Beta 34, Aurora 35, Nightly 36, Firefox 31.2 ESR - 14.10.2014
  • Firefox 34, Beta 35,  Aurora 36, Nightly 37, Firefox 31.3 ESR - 25.11.2014
  • Firefox 35, Beta 36, Aurora 37, Nightly 38, Firefox 31.4 ESR - 13.1.2015
  • Firefox 36, Beta 37, Aurora 38, Nightly 39, Firefox 31.5 ESR - 24.02.2015
  • Firefox 37, Beta 38, Aurora 39, Nightly 40, Firefox 31.6 ESR - 7.4.2015
  • Firefox 38, Beta 39, Aurora 40, Nightly 41, Firefox 38.0 ESR - 19.5.2015
  • Firefox 39, Beta 40, Aurora 41, Nightly 42, Firefox 38.1 ESR - 30.6.2015
  • Firefox 40, Beta 41, Aurora 42, Nightly 43, Firefox 38.2 ESR - 11.8.2015
  • Firefox 41, Beta 42, Aurora 43, Nightly 44, Firefox 38.3 ESR - 22.9.2015
  • Firefox 42, Beta 43, Aurora 44, Nightly 45, Firefox 38.4 ESR - 3.11.2015
  • Firefox 43, Beta 44, Aurora 45, Nightly 46, Firefox 38.5 ESR - 15.12.2015
  • Firefox 44, Beta 45, Aurora 46, Nightly 47, Firefox 38.6 ESR - 26.1.2016
  • Firefox 45, Beta 46, Aurora 47, Nightly 48, Firefox 45.0 ESR - 8.3.2016
  • Firefox 46, Beta 47, Aurora 48, Nightly 49, Firefox 45.1 ESR - 26.4.2016
  • Firefox 47, Beta 48, Aurora 49, Nightly 50, Firefox 45.2 ESR - 7.6.2016
  • Firefox 48, Beta 49, Aurora 50, Nightly 51, Firefox 45.3 ESR - 2.8.2016
  • Firefox 49, Beta 50, Aurora 51, Nightly 52, Firefox 45.4 ESR - 20.9.2016
  • Firefox 50, Beta 51, Aurora 52, Nightly 53, Firefox 45.5 ESR - 15.11.2016
  • Firefox 50.0.1, Firefox ESR 45.5.1  - 13.12.2016
  • Firefox 51, Beta 52, Aurora 53, Nightly 54, Firefox 45.6 ESR - 24.1.2017
  • Firefox 52, Beta 53, Aurora 54, Nightly 55, Firefox 45.7 ESR (start of Firefox 52.0 ESR) - 7.3.2017
  • Firefox 53, Beta 54, Aurora 55, Nightly 56, Firefox 45.8 ESR (Firefox 52.1 ESR) - 18.4.2017
  • Firefox 54, Beta 55, Nightly 57, Firefox ESR 52.2  - 13.6.2017
  • Firefox 55, Beta 56, Nightly 58, Firefox ESR 52.3 - 8.8.2017
  • Firefox 56, Beta 57, Nightly 59, Firefox ESR 52.4 - 28.9.2017
  • Firefox 57, Beta 58, Nightly 60, Firefox ESR 52.5 - 14.11.2017
  • Firefox 58, Beta 59, Nightly 61, Firefox ESR 52.6 - 23.1.2018
  • Firefox 59, Beta 60, Nightly 62, Firefox ESR 52.7 - 13.3.2018
  • Firefox 60, Beta 61, Nightly 62. Firefox ESR 60.0, Firefox ESR 52.8 - 9.5.2018
  • Firefox 61, Beta 62, Nightly 63, Firefox ESR 60.1, Firefox ESR 52.9 - 26.6.2018
  • Firefox 62, Beta 63, Nightly 64, Firefox ESR 60.2 - 5.9.2018
  • Firefox 63, Beta 64, Nightly 65, Firefox ESR 60.3 - 23.10.2018
  • Firefox 64, Beta 65, Nightly 66, Firefox ESR 60.4- 11.12.2018
  • Firefox 65, Beta 66, Nightly 67, Firefox ESR 60.5 -- 29.1.2019
  • Firefox 66, Beta 67, Nightly 68, Firefox ESR 60.6 -- 19.3.2019
  • Firefox 67, Beta 68, Nightly 69, Firefox ESR 60.7 -- 21.5.2019
  • Firefox 68, Beta 69, Nightly 70, Firefox ESR 68.0, Firefox ESR 60.8 -- 9.7.2019
  • Firefox 69, Beta 70, Nightly 71, Firefox ESR 68.1, Firefox ESR 60.9-- 3.9.2019
  • Firefox 70, Beta 71, Nightly 72, Firefox ESR 68.2 -- 22.10.2019
  • Firefox 71, Beta 72, Nightly 73, Firefox ESR 68.3 -- 03.12.2019
  • Firefox 72, Beta 73, Nightly 74, Firefox ESR  68.4 --7.01.2020
  • Firefox 73, Beta 74, Nightly 75, Firefox ESR  68.5 -- 11.02.2020
  • Firefox 74, Beta 75, Nightly 76, Firefox ESR  68.6 -- 10.03.2020
  • Firefox 75, Beta 76, Nightly 77, Firefox ESR  68.7 -- 07.04.2020
  • Firefox 76, Beta 77, Nightly 78, Firefox ESR  68.8 -- 05.05.2020
  • Firefox 77, Beta 78, Nightly 79, Firefox ESR  68.9 -- 02.06.2020
  • Firefox 78, Beta 79, Nightly 80, Firefox ESR  68.10 and 78.0 -- 30.06.2020
  • Firefox 79, Beta 80, Nightly 81, Firefox ESR  68.11 and 78.1 -- 28.07.2020
  • Firefox 80, Beta 81, Nightly 82, Firefox ESR  68.12 and 78.2 -- 25.08.2020
  • Firefox 81, Beta 82, Nightly 83, Firefox ESR  78.3 -- 22.09.2020
  • Firefox 82, Beta 83, Nightly 84, Firefox ESR 78.4 -- 20.10.2020
  • Firefox 83, Beta 84, Nightly 85, Firefox ESR 78.5 -- 17.11.2020
  • Firefox 84, Beta 85, Nightly 86, Firefox ESR 78.6 -- 15.12.2020
  • Firefox 85, Beta 86, Nightly 87, Firefox ESR 78.7 -- 26.01.2021
  • Firefox 86, Beta 87, Nightly 88, Firefox ESR 78.8 -- 23.02.2021
  • Firefox 87, Beta 88, Nightly 89, Firefox ESR 78.9 -- 23.03.2021
  • Firefox 88, Beta 89, Nightly 90, Firefox ESR 78.10 -- 20.04.2021
  • Firefox 89, Beta 90, Nightly 91, Firefox ESR 78.11 -- 1.06.2021
  • Firefox 90, Beta 91, Nightly 92, Firefox ESR 78.12 -- 13.07.2021
  • Firefox 91, Beta 92, Nightly 93, Firefox ESR 91.0 and Firefox ESR 78.13 -- 10.08.2021
  • Firefox 92, Beta 93, Nightly 94, Firefox ESR 91.1 and Firefox ESR 78.14 -- 7.09.2021
  • Firefox 93, Beta 94, Nightly 95, Firefox ESR 91.2 and Firefox ESR 78.15 -- 5.10.2021
  • Firefox 94, Beta 95, Nightly 96, Firefox ESR 91.3 -- 2.11.2021
  • Firefox 95, Beta 96, Nightly 97, Firefox ESR 91.4 -- 7.12.2021
  • Firefox 96, Beta 97, Nightly 98, Firefox ESR 91.5 -- 11.01.2022
  • Firefox 97, Beta 98, Nightly 99, Firefox ESR 91.6 -- 8.2.2022
  • Firefox 98, Beta 99, Nightly 100, Firefox ESR 91.7 -- 8.3.2022
  • Firefox 99, Beta 100, Nightly 101, Firefox ESR 91.8 -- 5.4.2022
  • Firefox 100, Beta 101, Nightly 102, Firefox ESR 91.9 -- 3.5.2022
  • Firefox 101 Beta 102, Nightly 103, Firefox ESR 91.10 -- 31.5.2022
  • Firefox 102 Beta 103, Nightly 104, Firefox ESR 91.11 and Firefox ESR 102.0 -- 28.6.2022
  • Firefox 103 Beta 104, Nightly 105, Firefox ESR 91.12 and Firefox ESR 102.1 -- 26.7.2022
  • Firefox 104 Beta 105, Nightly 106, Firefox ESR 91.13 and Firefox ESR 102.2 -- 23.8.2022
  • Firefox 105 Beta 106, Nightly 107, Firefox ESR 102.3 -- 20.9.2022
  • Firefox 106 Beta 107, Nightly 108, Firefox ESR 102.4 -- 17.10.2022
  • Firefox 107 Beta 108, Nightly 109, Firefox ESR 102.5 -- 15.11.2022
  • Firefox 108 Beta 109, Nightly 110, Firefox ESR 102.6 -- 13.12.2022
  • Firefox 109 Beta 110, Nightly 111, Firefox ESR 102.7 -- 17.01.2023
  • Firefox 110 Beta 111, Nightly 112, Firefox ESR 102.8 -- 14.02.2023
  • Firefox 111 Beta 112, Nightly 113, Firefox ESR 102.9 -- 14.3.2023
  • Firefox 112 Beta 113, Nightly 114, Firefox ESR 102.10 -- 11.04.2023
  • Firefox 113 Beta 114, Nightly 115, Firefox ESR 102.11 -- 09.05.2023
  • Firefox 114 Beta 115, Nightly 116, Firefox ESR 102.12 -- 06.06.2023
  • Firefox 115 Beta 116, Nightly 117, Firefox ESR 102.13, Firefox ESR 115.0 -- 04.07.2023
  • Firefox 116 Beta 117, Nightly 118, Firefox ESR 102.14, Firefox ESR 115.1 -- 01.08.2023

The release schedule for Firefox is regularly updated by us so that you will always know when future versions and editions of Firefox are released by Mozilla.

Since Mozilla moved from a 42 release cycle to a flexible scheme, it becomes even more important to keep an eye on these releases.

Summary
Mozilla Firefox Release Schedule
Article Name
Mozilla Firefox Release Schedule
Description
Find out when new versions of the Firefox web browser get released. Track releases for all browser channels - Stable, Beta, Aurora and Nightly -- as well as ESR releases.
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Ghacks Technology News
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Comments

  1. Kalle Pihlajasaari said on November 25, 2021 at 10:38 am
    Reply

    You have a few typos that are easy to fix.

    In the release schedule:
    “Firefox 96, Beta 97, Nightly 98, Firefox ESR 91.5 — 11.01.2021”
    The date should be 2022

    In the past releases:
    “Firefox 24, Beta 25, Aurora 26, Firefox 24.0 ESR – 17.9.2013”
    There are a number of lines with the accented character “” that are spurious

  2. TelV said on December 3, 2017 at 6:31 pm
    Reply

    @ Martin,

    There appears to be a way of preventing the move to update ESR from 52.6 to 59 in the CTR developer’s thread on Github. It would appear that if you decline the upgrade to 59, ESR will update to 52.7 thereafter to 52.8. Only after that will users be required to update to 59.2 which won’t support legacy add-ons anymore. Details are in the “Note” in the first post: https://github.com/Aris-t2/ClassicThemeRestorer/issues/299

  3. Mystique said on August 17, 2012 at 6:22 pm
    Reply

    The most irritating thing about firefox is the constant crashing on pages loaded with animated gifs.

    1. Odin said on September 5, 2017 at 10:46 pm
      Reply

      try to make a new profile and see if it still happens

    2. Ry said on September 19, 2012 at 10:57 am
      Reply

      You either have a graphics or memory issue or your profile is messed up. Try a clean profile.

    3. miner said on August 19, 2012 at 6:39 am
      Reply

      err…. *are NOT related to FF

    4. miner said on August 19, 2012 at 6:37 am
      Reply

      Sounds like your system is infected or you’re incompetent but your issues are related to FF

  4. kay said on August 17, 2012 at 2:37 pm
    Reply

    I like Waterfox. Works great for me. Unload some of the add-ons if you are having issues (with any browser).

  5. jay said on August 16, 2012 at 9:17 pm
    Reply

    Could you perhaps make a comparison of Firefox vs Palemoon vs Waterfox?

    1. cezi said on August 18, 2012 at 2:29 am
      Reply

      Waterfox is just FF stable but 64bit,
      Palemoon differs more ,it can change displaying your FF profile-especially if it was huge + very tweaked- then it is better to have different one , Waterfox64bit(there is only 64bit) works well with FF profile

      IN both cases if U’re uninstall P/W be careful not to delete FF profile – that’s the only one caveats..Just have it backuped..

      If till now you’re staying with stable FF realeses you can go for P/W , W esp. if you want 64bit , but if you like Nightly/ Aurora -stay with them – and well , who said that you should use
      only one ?

      for more: http://www.palemoon.org = 32bit and 64bit , also portable

      http://waterfoxproject.org/

      https://sourceforge.net/projects/waterfoxproj/

      But G.Chroma replace with Chromium or Iron without hesitation
      Other webkit options to look into : qupzilla , maxthon ,avant

    2. boris said on August 16, 2012 at 11:30 pm
      Reply

      Tried Waterfox. The same memory problems as with generic Firefox. Did not see any speed improvements.

    3. Jim said on August 16, 2012 at 10:44 pm
      Reply

      First time I’ve heard of Waterfox. I’ll check it out. Thanks!

      I tried Palemoon. I got tired of it always being a couple of versions behind generic FF. It is supposedly optimized for Windows with some features disabled. I honestly didn’t notice any difference. Ultimately I went back to FF just to avoid the hassles.

  6. A&L said on August 16, 2012 at 8:37 pm
    Reply

    there’s also a palemoon version
    http://www.palemoon.org/

    1. A Thompson said on October 19, 2013 at 11:44 pm
      Reply

      and as well as Palemoon there is also Cometbird…used it for years.

      http://www.cometbird.com/

  7. ilev said on August 16, 2012 at 8:21 pm
    Reply

    Where is the Firefox Release Schedule for Windows 8 metro, WP8, Android, Mac OSX, Linux..?

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