Firefox end-of-life dates
Firefox 158 reaches end of life on 2026-10-27.
| Cycle | Released | Active support ends | End of life | Latest | LTS |
|---|---|---|---|---|---|
| 158 | 2026-10-13 | 2026-10-27 | 158.0.1 | ||
| 157 | 2026-09-29 | 2026-10-13 | 157.0.1 | ||
| 156 | 2026-09-15 | 2026-09-29 | 156.0.1 | ||
| 155 | 2026-09-01 | 2026-09-15 | 155.0.1 | ||
| 154 | 2026-08-18 | 2026-09-01 | 154.0.1 | ||
| 153 | 2026-07-21 | 153.5.1 | yes | ||
| 152 | 2026-06-16 | 2026-07-21 | 152.0.6 | ||
| 151 | 2026-05-18 | 2026-06-16 | 151.0.4 | ||
| 150 | 2026-04-21 | 2026-05-18 | 150.0.3 | ||
| 149 | 2026-03-24 | 2026-04-21 | 149.0.2 | ||
| 148 | 2026-02-24 | 2026-03-24 | 148.0.2 | ||
| 147 | 2026-01-13 | 2026-02-24 | 147.0.4 | ||
| 146 | 2025-12-09 | 2026-01-13 | 146.0.1 | ||
| 145 | 2025-11-11 | 2025-12-09 | 145.0.2 | ||
| 144 | 2025-10-14 | 2025-11-11 | 144.0.2 | ||
| 143 | 2025-09-16 | 2025-10-14 | 143.0.4 | ||
| 142 | 2025-08-19 | 2025-09-16 | 142.0.1 | ||
| 141 | 2025-07-22 | 2025-08-19 | 141.0.3 | ||
| 140 | 2025-06-24 | 2026-09-29 | 140.17.0 | yes | |
| 139 | 2025-05-27 | 2025-06-24 | 139.0.4 | ||
| 138 | 2025-04-29 | 2025-05-27 | 138.0.4 | ||
| 137 | 2025-04-01 | 2025-04-29 | 137.0.2 | ||
| 136 | 2025-03-04 | 2025-04-01 | 136.0.4 | ||
| 135 | 2025-02-04 | 2025-03-04 | 135.0.1 | ||
| 134 | 2025-01-07 | 2025-02-04 | 134.0.2 | ||
| 133 | 2024-11-26 | 2025-01-07 | 133.0.3 | ||
| 132 | 2024-10-29 | 2024-11-26 | 132.0.2 | ||
| 131 | 2024-10-01 | 2024-10-29 | 131.0.3 | ||
| 130 | 2024-09-03 | 2024-10-01 | 130.0.1 | ||
| 129 | 2024-08-06 | 2024-09-03 | 129.0.2 | ||
| 128 | 2024-07-09 | 2025-09-16 | 128.14.0 | yes | |
| 127 | 2024-06-11 | 2024-07-09 | 127.0.2 | ||
| 126 | 2024-05-14 | 2024-06-11 | 126.0.1 | ||
| 125 | 2024-04-16 | 2024-05-14 | 125.0.3 | ||
| 124 | 2024-03-19 | 2024-04-16 | 124.0.2 | ||
| 123 | 2024-02-20 | 2024-03-19 | 123.0.1 | ||
| 122 | 2024-01-23 | 2024-02-20 | 122.0.1 | ||
| 121 | 2023-12-19 | 2024-01-23 | 121.0.1 | ||
| 120 | 2023-11-21 | 2023-12-19 | 120.0.1 | ||
| 119 | 2023-10-24 | 2023-11-21 | 119.0.1 | ||
| 118 | 2023-09-26 | 2023-10-24 | 118.0.2 | ||
| 117 | 2023-08-29 | 2023-09-26 | 117.0.1 | ||
| 116 | 2023-08-01 | 2023-08-29 | 116.0.3 | ||
| 115 | 2023-07-04 | 2027-03-31 | 115.38.0 | yes | |
| 114 | 2023-06-06 | 2023-07-04 | 114.0.2 | ||
| 113 | 2023-05-09 | 2023-06-06 | 113.0.2 | ||
| 112 | 2023-04-11 | 2023-05-09 | 112.0.2 | ||
| 111 | 2023-03-14 | 2023-04-11 | 111.0.1 | ||
| 110 | 2023-02-14 | 2023-03-14 | 110.0.1 | ||
| 109 | 2023-01-17 | 2023-02-14 | 109.0.1 | ||
| 108 | 2022-12-13 | 2023-01-17 | 108.0.2 | ||
| 107 | 2022-11-15 | 2022-12-13 | 107.0.1 | ||
| 106 | 2022-10-18 | 2022-11-15 | 106.0.5 | ||
| 105 | 2022-09-20 | 2022-10-18 | 105.0.3 | ||
| 104 | 2022-08-23 | 2022-09-20 | 104.0.2 | ||
| 103 | 2022-07-26 | 2022-08-23 | 103.0.2 | ||
| 102 | 2022-06-28 | 2023-09-26 | 102.15.1 | yes | |
| 91 | 2021-08-10 | 2022-09-20 | 91.13.0 | yes | |
| 78 | 2020-06-30 | 2021-11-02 | 78.15.0 | yes |
Facts
- Source
- endoflife.date (checked 2026-09-09)
Release cycles
Firefox has 59 tracked release cycles.
56 cycles have reached end of life.
7 cycles are long-term support releases.
Keelbench tracks end-of-life dates for 469 products, updated daily. Check your repositories against these dates with Deps.