| Release Date | June 24, 2025 |
|---|---|
| Release Owner | Donal Meehan | Corresponding ESR releases | 140.0.0 · 128.12.0 · 115.25.0? |
| Nightly cycle length | 4 weeks |
| Beta cycle length | 4 weeks |
| Bugs fixed in nightly | 2233 |
| Uplifts in beta | 164 (0 backouts) |
| Uplifts in RC | 2 (0 backouts) |
| Uplifts in dot releases | 0 (0 backouts) |
| Total number of uplifts | 166 |
| Betas | 9 |
| Release Candidates | 1 |
| Dot releases | 3 |
| Release notes | Consumer notes ⁘ Developer notes |
| Key Milestones | |
|---|---|
| Nightly start | April 29 |
| Beta start | May 27 |
| 140.0 6% adoption | June 24 |
| 140.0.1 Desktop-only 7% adoption | June 26 |
| 140.0.2 Desktop-only 46% adoption | June 27 |
| 140.0.3 Android-only 100% rollout | July 1 |
| Planned 140.0.x | July 8 |