Releases
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This is a page for tracking in-progress releases. For maintenance releases, we use a general checklist to ensure we don't miss anything.
- perhaps you'd like to see who release drivers for various releases are?
- or perhaps you'd like to learn more about the priority rankings we assign to releases?
- you might even wonder how we use flags to manage our releases?
- or what branches exist and when they branched?
- perchance you're confused about update terminology?
- maybe you'd like to know about our various branch support levels?
- perhaps you want to see the RapidRelease Calendar for future aurora merges, beta merges, and releases?
- maybe you are interested in checking the Feature Release Tracker for upcoming features?
Upcoming Releases
Please do not edit scheduled dates if you are not a release driver.
Note: the Beta, Aurora and Nightly dates are code merge dates, not release dates.
Based on Gecko 159
Firefox 159
Firefox
Currently in BETA channel
Moves to RELEASE week of November 20, 2012
Moves to RELEASE week of November 20, 2012
Thunderbird 159
Currently in BETA channel
Moves to RELEASED on November 20, 2012
Moves to RELEASED on November 20, 2012
Based on Gecko 54
Firefox 54
Firefox
Currently in AURORA channel
Moves to BETA week of November 19, 2012
Moves to BETA week of November 19, 2012
Thunderbird 54
Thunderbird
Currently in EARLYBIRD channel
Moves to BETA week of November 19, 2012
Moves to BETA week of November 19, 2012
Based on Gecko 160
Firefox 160
Firefox
Currently in NIGHTLY channel
Moves to BETA week of November 19, 2012
Moves to BETA week of November 19, 2012
Thunderbird 160
Thunderbird
Currently in DAILY channel
Moves to BETA week of November 19, 2012
Moves to BETA week of November 19, 2012
Other releases
| Name | Scheduled Release Date | Links |
|---|---|---|
| 10.0esr follows same schedule as Firefox and Thunderbird security fixes only | ||
| 10.0.9 | October 12, 2012 | |
| SeaMonkey follows same schedule as Firefox and Thunderbird | ||
| SeaMonkey 2.14 Based on GECKO 17 |
Currently in BETA Moves to Released on November 20, 2012 |
|
| SeaMonkey 2.15 Based on GECKO 18 |
Currently in AURORA Moves to Beta on November 19, 2012 |
|
| SeaMonkey 2.16 Based on GECKO 19 |
Currently in NIGHTLY Moves to Aurora on November 19, 2012 |
|
Previous Releases
| Name | Release Date | Links |
|---|---|---|
| SeaMonkey 2.13.1 | October 12 | Release Notes |
| Firefox 10.0.9esr | October 12 | Release Notes |
| Firefox 16.0.1 | October 11 | Release Notes |
| SeaMonkey 2.13 | October 9 | Release Notes |
| Firefox 16.0 | October 9 | Release Notes |
| Firefox 10.0.8esr | October 9 | Release Notes |
| SeaMonkey 2.12.1 | September 10 | Release Notes |
| Thunderbird 15.0.1 | September 10 | Release Notes |
| Firefox 15.0.1 | September 6 | Release Notes |
| SeaMonkey 2.12 | August 28 | Release Notes |
| Firefox 15.0 | August 28 | Release Notes |
| Firefox 10.0.7esr | August 28 | Release Notes |
| Thunderbird 15.0 | August 28 | Release Notes |
| Thunderbird 10.0.7esr | August 28 | Release Notes |
| SeaMonkey 2.11 | July 17 | Release Notes |
| Firefox 10.0.6esr | July 17 | Release Notes |
| Firefox for Android 14.0.1 | July 17 | Release Notes |
| Firefox 14.0.1 | July 17 | Release Notes |
| Thunderbird 14.0 | July 17 | Release Notes |
| Firefox for Android 14.0 | June 26 | Release Notes |
| Firefox 13.0.1 | June 15 | Build Notes |
| Thunderbird 13.0.1 | June 15 | Build Notes |
| SeaMonkey 2.10.1 | June 15 | |
| SeaMonkey 2.10 | June 6 | |
| Firefox 10.0.5esr | June 5 | |
| Firefox 10.0.5 Mobile | June 5 | |
| Firefox 13 | June 5 | |
| SeaMonkey 2.9.1 | April 30 | |
| Thunderbird 12.0.1 | April 30 | Build Notes |
| Firefox 10.0.4esr | April 24 | |
| Firefox 10.0.4 Mobile | April 24 | |
| Firefox 12 | April 24 | |
| SeaMonkey 2.9 | April 24 | |
| SeaMonkey 2.8 | March 13 | |
| Firefox 3.6.28 | March 13 | |
| Firefox 10.0.3esr | March 13 | |
| Firefox 10.0.3 Mobile | March 13 | |
| Firefox 11 | March 13 | |
| SeaMonkey 2.7.2 | February 17 | Build Notes |
| Firefox 3.6.27 | February 17 | |
| Firefox 10.0.2 | February 16 | |
| Firefox 10.0.2 ESR | February 16 | |
| Thunderbird 10.0.2 | February 16 | |
| Thunderbird 10.0.2 ESR | February 16 | |
| Thunderbird 3.1.19 | February 16 | |
| Firefox 3.6.26 → 10.0.1 Advertised Update | February 14 | |
| Thunderbird 10.0.1 | February 12 | |
| Thunderbird 10.0.1 ESR | February 12 | |
| SeaMonkey 2.7.1 | February 10 | Build Notes |
| Firefox 10.0.1 | February 10 | |
| Firefox 10.0.1 ESR | February 10 | |
| Firefox 10.0 | January 31 | |
| Firefox 10.0 ESR | January 31 | |
| Firefox 3.6.26 | January 31 | |
| Thunderbird 10.0 | January 31 | |
| Thunderbird 10.0 ESR | January 31 | |
| Thunderbird 3.1.18 | January 31 | |
| SeaMonkey 2.7 | January 31 | Beta 1 Notes Beta 2 Notes Beta 3 Notes Beta 4 Notes Beta 5 Notes Final Build Notes |
| Firefox 3.6.x → 9.0.1 Advertised Update | January 19 |
For releases prior to 2012, please see the archive.