Firefox 140.0, See All New Features, Updates and Fixes

Below you'll find links to the developer release notes for every Firefox release. These lovingly-crafted notes provide details on what features and APIs were ... Firefox 135 · Firefox 127 · Firefox 112 · Firefox 52

Firefox 33.1 was released on November 10, 2014, celebrating Firefox's 10-year anniversary. Firefox 33.1. 1 was released for desktop only on November 14, 2014, ...

Index of /pub/firefox/releases/ ; Dir, 10.0.6esr/ ; Dir, 10.0.7esr/ ; Dir, 10.0.8esr/ ; Dir, 10.0.9esr/. Mozilla Firefox · Firefox 1.5 · Firefox 52.9.0esr · Pub/firefox/releases/latest

Upcoming releases. Developer Edition follows the Beta schedule. The above schedule can also be consulted as a detailed monthly view.

6 天前 · 141.0 Firefox Release. July 22, 2025. Version 141.0, first offered to Release channel users on July 22, 2025 ...

Release Notes tell you what's new in Firefox. As always, we welcome your feedback. You can also file a bug in Bugzilla or see the system requirements of this ...

Firefox release notes are specific to each version of the application. Select your version from the list below to see the release notes for it.

128.12.0 Firefox ESR. June 24, 2025. Version 128.12.0, first offered to ESR channel users on June 24, 2025. Fixed. Various security fixes.

Version 140.0.2, first offered to Release channel users on June 27, 2025. Fixed: Fixed a startup crash on Windows experienced by some users.