Firefox 128 ESR

Last release April 1, 2025
Latest version 128.9.0
Releases calendar
Firefox ESR Old ESR Date
138 128.10 115.23 April 29
139 128.11 115.24 May 27
140 140.0 128.12 - 115.25 New ESR 140 branch! June 24
141 140.1 128.13 - 115.26 July 22
142 140.2 128.14 - 115.27 August 19
143 140.3 ESR 115 branch is EOL ESR 128 branch is EOL September 16
144 140.4 October 14
145 140.5 November 11
146 140.6 December 9
147 140.7 January 13