winget install --id Mozilla.Firefox.ESR.elAbout Mozilla Firefox ESR (el)
Get the Firefox Extended Support Release or Rapid Release browser for comprehensive data security and data protection.
What's new in 140.11.0
Version 140.11.0, first offered to ESR channel users on May 19, 2026 Firefox 140 Extended Support Release (ESR) includes all of the enhancements since Firefox 128, along with many new features to make your enterprise deployments easier and even more flexible. Fixed - Various security fixes. Developer
Version history
| Version | Updated | Notes |
|---|---|---|
| 140.11.0 | Unknown | Version 140.11.0, first offered to ESR channel users on May 19, 2026 Firefox 140 Extended Support Release (ESR) includes all of the enhancements since Firefox 128, along with many new features to make your enterprise dep... |
| 140.10.2 | Unknown | We’re still preparing the notes for this release, and will post them here when they are ready. Please check back later. |
| 140.10.1 | Unknown | We’re still preparing the notes for this release, and will post them here when they are ready. Please check back later. |
| 140.10.0 | Unknown | Version 140.10.0, first offered to ESR channel users on April 21, 2026 Firefox 140 Extended Support Release (ESR) includes all of the enhancements since Firefox 128, along with many new features to make your enterprise d... |
| 140.9.1 | Unknown | Version 140.9.1, first offered to ESR channel users on April 7, 2026 Firefox 140 Extended Support Release (ESR) includes all of the enhancements since Firefox 128, along with many new features to make your enterprise dep... |
| 140.9.0 | Unknown | Version 140.9.0, first offered to ESR channel users on March 24, 2026 Firefox 140 Extended Support Release (ESR) includes all of the enhancements since Firefox 128, along with many new features to make your enterprise de... |
| 140.8.0 | Unknown | Release notes |
| 140.7.1 | Unknown | Release notes |
| 140.7.0 | Unknown | Fixed - Various security fixes. Developer |
| 140.6.0 | Unknown | Fixed - Various security fixes. Developer |
| 140.5.0 | Unknown | Fixed - Various security fixes. Developer |
| 140.4.0 | Unknown | Fixed - Various security fixes. Developer |
| 140.3.1 | Unknown | Fixed - Improved reliability when HTTP/3 connections fail: Firefox no longer forces HTTP/2 during fallback, allowing the server to choose the protocol and preventing stalls on some sites. (Bug 1980812) Developer - Refere... |
| 140.3.0 | Unknown | Fixed - Various security fixes. Developer - Reference link to 140.0esr release notes. |
| 128.13.0 | Unknown | Fixed - Various security fixes. Developer |
| 128.12.0 | Unknown | Fixed - Various security fixes. Developer |
| 128.11.0 | Unknown | Fixed - Various security fixes. Developer |
| 128.10.1 | Unknown | Fixed - Security Fixes. Developer |
| 128.10.0 | Unknown | Fixed - Various security fixes. Developer Unresolved - Due to recent changes in Chrome on Windows, some users might find that the Firefox migration wizard no longer successfully imports passwords from Chrome or Chrome-ba... |
| 128.9.0 | Unknown | Fixed - Various security fixes. Developer |