«  Firefox 131  »

Release DateOctober 1, 2024
Release OwnerDianna Smith
Corresponding ESR releases 128.3.0 115.16.0
Nightly cycle length4 weeks
Beta cycle length4 weeks
Bugs fixed in nightly 1065
Uplifts in Beta87 (6 backouts)
Uplifts in RC0 (0 backouts)
Total number of uplifts87
Betas9
Release Candidates1
Dot releases2
Release notes Consumer notes Developer notes
Key Milestones
Nightly start August 6
Beta start September 3
131.0 19% adoption October 1
131.0.1 Android-only October 8
131.0.2 61% adoption 100% rollout October 9
Planned 131.0.x October 14