This is a staging environment for
whattrainisitnow.com
Upcoming ESR releases
| Firefox |
ESR |
Old ESR |
Shipping date |
| 2026 ↓ |
| 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
|
| 165 |
153.12 |
115.50
|
February 9
|
| 166 |
153.13 |
115.51
|
February 23
|
| 167 |
153.14 |
115.52
|
March 9
|
| 168 |
153.15 |
115.53
|
March 23
|
| 169 |
153.16 |
|
ESR 115 branch is EOL
April 6
|
| 170 |
153.17 |
|
April 20
|
| 171 |
153.18 |
|
May 4
|
| 172 |
153.19 |
|
May 18
|
| 173 |
153.20 |
|
June 1
|
| 174 |
153.21 |
|
June 15
|
| 175 |
175.0 |
153.22
|
New ESR 175 branch!
June 29
|
| 176 |
175.1 |
153.23
|
July 13
|
| 177 |
175.2 |
153.24
|
July 27
|
| 178 |
175.3 |
153.25
|
August 10
|
| 179 |
175.4 |
153.26
|
August 24
|
| 180 |
175.5 |
153.27
|
September 7
|
| 181 |
175.6 |
|
ESR 153 is EOL → Updates to ESR 175
September 21
|
| 182 |
175.7 |
|
October 5
|
| 183 |
175.8 |
|
October 19
|
| 184 |
175.9 |
|
November 2
|
| 185 |
175.10 |
|
November 16
|
| 186 |
175.11 |
|
November 30
|
| 187 |
175.12 |
|
December 14
|
| 2028 ↓ |
| 188 |
175.13 |
|
January 11
|
| 189 |
175.14 |
|
January 25
|
| 190 |
175.15 |
|
February 8
|