Firefox shortens its release cycle from four weeks to two weeks, allowing ready features to reach users more frequently

Mozilla says Firefox will experiment with a shorter release cycle starting in September 2026, moving desktop and Android major updates from every 4 weeks to every 2 weeks.

The goal is to deliver finished features and fixes to users sooner.

The first visible change is an earlier release date for Firefox 155.

Faster updates could bring improvements more quickly, but they may also affect release operations and testing workflows.