Jul 27, 2026 23:45:00

Firefox has shortened its release cycle from four weeks to two weeks, allowing it to deliver ready features to users more frequently.

Mozilla's web browser, Firefox, currently releases major updates every four weeks, but starting in September 2026, this frequency will be increased to every two weeks.

Firefox release cadence experiment: moving to 2 weeks starting in September

https://groups.google.com/a/mozilla.org/g/dev-platform/c/qlaQ1YSlOP8/m/otwwL6BGAwAJ

Firefox to Test a Two-Week Release Cycle Starting in September
https://linuxiac.com/firefox-to-test-a-two-week-release-cycle-starting-in-september/

According to a notice from Mozilla developer

Silvestre Ledreux , the release cycle for the desktop and Android versions of Firefox will be shortened from the current four weeks to two weeks starting in September 2026.

The goal of this initiative is to clarify the release process, reduce the burden of upgrades, and provide users with more frequent opportunities to receive ready-to-release features and fixes. It will initially be conducted as an experimental project.

While the release frequency will double, this doesn't mean developers need to double their work speed. Tasks that aren't ready shouldn't be rushed, and feature development will continue to take the necessary amount of time to complete.

First, Firefox 155, which was originally scheduled for release on September 15, 2026, is now scheduled for release on September 1, 2026.

Redryu said, 'We will closely monitor how the changes to the release cycle actually work and make adjustments as needed.'

Furthermore, competing browser Google Chrome is also scheduled to shorten its release cycle from four weeks to two weeks starting in the summer of 2026.

Google shortens Chrome's release cycle from 4 weeks to 2 weeks - GIGAZINE