Firefox End of Life Dates
All 54 Firefox release branches: support windows, latest releases, and what each EOL branch has missed since. Data refreshed daily.
Support lifecycle at a glance
■ supported ■ security fixes only ■ end of life
All versions
Release dates, end-of-life dates and current support status for every Firefox branch.
| Branch | Released | End of life | Status | Latest |
|---|---|---|---|---|
| 153 | 21 Jul 2026 | — | supported | 153.0.3 |
| 152 | 16 Jun 2026 | 21 Jul 2026 | EOL | 152.0.6 |
| 151 | 18 May 2026 | 16 Jun 2026 | EOL | 151.0.4 |
| 150 | 21 Apr 2026 | 18 May 2026 | EOL | 150.0.3 |
| 149 | 24 Mar 2026 | 21 Apr 2026 | EOL | 149.0.2 |
| 148 | 24 Feb 2026 | 24 Mar 2026 | EOL | 148.0.2 |
| 147 | 13 Jan 2026 | 24 Feb 2026 | EOL | 147.0.4 |
| 146 | 9 Dec 2025 | 13 Jan 2026 | EOL | 146.0.1 |
| 145 | 11 Nov 2025 | 9 Dec 2025 | EOL | 145.0.2 |
| 144 | 14 Oct 2025 | 11 Nov 2025 | EOL | 144.0.2 |
| 143 | 16 Sept 2025 | 14 Oct 2025 | EOL | 143.0.4 |
| 142 | 19 Aug 2025 | 16 Sept 2025 | EOL | 142.0.1 |
| 141 | 22 Jul 2025 | 19 Aug 2025 | EOL | 141.0.3 |
| 140 | 24 Jun 2025 | 29 Sept 2026 | supported | 140.13.0 |
| 139 | 27 May 2025 | 24 Jun 2025 | EOL | 139.0.4 |
| 138 | 29 Apr 2025 | 27 May 2025 | EOL | 138.0.4 |
| 137 | 1 Apr 2025 | 29 Apr 2025 | EOL | 137.0.2 |
| 136 | 4 Mar 2025 | 1 Apr 2025 | EOL | 136.0.4 |
| 135 | 4 Feb 2025 | 4 Mar 2025 | EOL | 135.0.1 |
| 134 | 7 Jan 2025 | 4 Feb 2025 | EOL | 134.0.2 |
| 133 | 26 Nov 2024 | 7 Jan 2025 | EOL | 133.0.3 |
| 132 | 29 Oct 2024 | 26 Nov 2024 | EOL | 132.0.2 |
| 131 | 1 Oct 2024 | 29 Oct 2024 | EOL | 131.0.3 |
| 130 | 3 Sept 2024 | 1 Oct 2024 | EOL | 130.0.1 |
| 129 | 6 Aug 2024 | 3 Sept 2024 | EOL | 129.0.2 |
| 128 | 9 Jul 2024 | 16 Sept 2025 | EOL | 128.14.0 |
| 127 | 11 Jun 2024 | 9 Jul 2024 | EOL | 127.0.2 |
| 126 | 14 May 2024 | 11 Jun 2024 | EOL | 126.0.1 |
| 125 | 16 Apr 2024 | 14 May 2024 | EOL | 125.0.3 |
| 124 | 19 Mar 2024 | 16 Apr 2024 | EOL | 124.0.2 |
| 123 | 20 Feb 2024 | 19 Mar 2024 | EOL | 123.0.1 |
| 122 | 23 Jan 2024 | 20 Feb 2024 | EOL | 122.0.1 |
| 121 | 19 Dec 2023 | 23 Jan 2024 | EOL | 121.0.1 |
| 120 | 21 Nov 2023 | 19 Dec 2023 | EOL | 120.0.1 |
| 119 | 24 Oct 2023 | 21 Nov 2023 | EOL | 119.0.1 |
| 118 | 26 Sept 2023 | 24 Oct 2023 | EOL | 118.0.2 |
| 117 | 29 Aug 2023 | 26 Sept 2023 | EOL | 117.0.1 |
| 116 | 1 Aug 2023 | 29 Aug 2023 | EOL | 116.0.3 |
| 115 | 4 Jul 2023 | 31 Mar 2027 | supported | 115.38.0 |
| 114 | 6 Jun 2023 | 4 Jul 2023 | EOL | 114.0.2 |
| 113 | 9 May 2023 | 6 Jun 2023 | EOL | 113.0.2 |
| 112 | 11 Apr 2023 | 9 May 2023 | EOL | 112.0.2 |
| 111 | 14 Mar 2023 | 11 Apr 2023 | EOL | 111.0.1 |
| 110 | 14 Feb 2023 | 14 Mar 2023 | EOL | 110.0.1 |
| 109 | 17 Jan 2023 | 14 Feb 2023 | EOL | 109.0.1 |
| 108 | 13 Dec 2022 | 17 Jan 2023 | EOL | 108.0.2 |
| 107 | 15 Nov 2022 | 13 Dec 2022 | EOL | 107.0.1 |
| 106 | 18 Oct 2022 | 15 Nov 2022 | EOL | 106.0.5 |
| 105 | 20 Sept 2022 | 18 Oct 2022 | EOL | 105.0.3 |
| 104 | 23 Aug 2022 | 20 Sept 2022 | EOL | 104.0.2 |
| 103 | 26 Jul 2022 | 23 Aug 2022 | EOL | 103.0.2 |
| 102 | 28 Jun 2022 | 26 Sept 2023 | EOL | 102.15.1 |
| 91 | 10 Aug 2021 | 20 Sept 2022 | EOL | 91.13.0 |
| 78 | 30 Jun 2020 | 2 Nov 2021 | EOL | 78.15.0 |