This is a staging environment for
whattrainisitnow.com
Upcoming ESR releases
| Firefox |
ESR |
Old ESR |
Shipping date |
| 2026 ↓ |
| 152 |
140.12 |
115.37
|
June 16
|
| 153 |
153.0 |
140.13 - 115.38
|
New ESR 153 branch!
July 21
|
| 154 |
153.1 |
140.14 - 115.39
|
August 18
|
| 155 |
153.2 |
140.15 - 115.40
|
September 1
|
| 156 |
153.3 |
140.16 - 115.41
|
ESR 140 branch is EOL
September 15
|
| 157 |
153.4 |
115.42
|
September 29
|
| 158 |
153.5 |
115.43
|
October 13
|
| 159 |
153.6 |
115.44
|
October 27
|
| 160 |
153.7 |
115.45
|
November 10
|
| 161 |
153.8 |
115.46
|
November 24
|
| 162 |
153.9 |
115.47
|
December 8
|
| 2027 ↓ |
| 163 |
153.10 |
115.48
|
January 12
|
| 164 |
153.11 |
115.49
|
January 26
|