Firefox End of Life Dates
ApplicationsAll 58 Firefox release branches: support windows, latest releases, and what each EOL branch has missed since. Updated daily — last refresh 2026-10-05.
3still supported
55end of life
31 Mar 2027next to expire — 115
Support lifecycle at a glance
■ supported ■ security fixes only ■ end of life
All versions
Release dates, security support dates and current support status for every Firefox branch.
| Branch | Released | Security Support ends | Status | Latest |
|---|---|---|---|---|
| 157 | 29 Sept 2026this month | — | supported | 157.0 |
| 156 | 15 Sept 20261mo ago | 29 Sept 2026this month | EOL | 156.0.1 |
| 155 | 1 Sept 20261mo ago | 15 Sept 20261mo ago | EOL | 155.0.1 |
| 154 | 18 Aug 20262mo ago | 1 Sept 20261mo ago | EOL | 154.0.1 |
| 153 | 21 Jul 20262mo ago | — | supported | 153.4.0 |
| 152 | 16 Jun 20264mo ago | 21 Jul 20262mo ago | EOL | 152.0.6 |
| 151 | 18 May 20265mo ago | 16 Jun 20264mo ago | EOL | 151.0.4 |
| 150 | 21 Apr 20265mo ago | 18 May 20265mo ago | EOL | 150.0.3 |
| 149 | 24 Mar 20266mo ago | 21 Apr 20265mo ago | EOL | 149.0.2 |
| 148 | 24 Feb 20267mo ago | 24 Mar 20266mo ago | EOL | 148.0.2 |
| 147 | 13 Jan 20269mo ago | 24 Feb 20267mo ago | EOL | 147.0.4 |
| 146 | 9 Dec 202510mo ago | 13 Jan 20269mo ago | EOL | 146.0.1 |
| 145 | 11 Nov 202511mo ago | 9 Dec 202510mo ago | EOL | 145.0.2 |
| 144 | 14 Oct 20251y ago | 11 Nov 202511mo ago | EOL | 144.0.2 |
| 143 | 16 Sept 20251y 1mo ago | 14 Oct 20251y ago | EOL | 143.0.4 |
| 142 | 19 Aug 20251y 2mo ago | 16 Sept 20251y 1mo ago | EOL | 142.0.1 |
| 141 | 22 Jul 20251y 2mo ago | 19 Aug 20251y 2mo ago | EOL | 141.0.3 |
| 140 | 24 Jun 20251y 3mo ago | 29 Sept 2026this month | EOL | 140.17.0 |
| 139 | 27 May 20251y 4mo ago | 24 Jun 20251y 3mo ago | EOL | 139.0.4 |
| 138 | 29 Apr 20251y 5mo ago | 27 May 20251y 4mo ago | EOL | 138.0.4 |
| 137 | 1 Apr 20251y 6mo ago | 29 Apr 20251y 5mo ago | EOL | 137.0.2 |
| 136 | 4 Mar 20251y 7mo ago | 1 Apr 20251y 6mo ago | EOL | 136.0.4 |
| 135 | 4 Feb 20251y 8mo ago | 4 Mar 20251y 7mo ago | EOL | 135.0.1 |
| 134 | 7 Jan 20251y 9mo ago | 4 Feb 20251y 8mo ago | EOL | 134.0.2 |
| 133 | 26 Nov 20241y 10mo ago | 7 Jan 20251y 9mo ago | EOL | 133.0.3 |
| 132 | 29 Oct 20241y 11mo ago | 26 Nov 20241y 10mo ago | EOL | 132.0.2 |
| 131 | 1 Oct 20242y ago | 29 Oct 20241y 11mo ago | EOL | 131.0.3 |
| 130 | 3 Sept 20242y 1mo ago | 1 Oct 20242y ago | EOL | 130.0.1 |
| 129 | 6 Aug 20242y 2mo ago | 3 Sept 20242y 1mo ago | EOL | 129.0.2 |
| 128 | 9 Jul 20242y 3mo ago | 16 Sept 20251y 1mo ago | EOL | 128.14.0 |
| 127 | 11 Jun 20242y 4mo ago | 9 Jul 20242y 3mo ago | EOL | 127.0.2 |
| 126 | 14 May 20242y 5mo ago | 11 Jun 20242y 4mo ago | EOL | 126.0.1 |
| 125 | 16 Apr 20242y 6mo ago | 14 May 20242y 5mo ago | EOL | 125.0.3 |
| 124 | 19 Mar 20242y 7mo ago | 16 Apr 20242y 6mo ago | EOL | 124.0.2 |
| 123 | 20 Feb 20242y 7mo ago | 19 Mar 20242y 7mo ago | EOL | 123.0.1 |
| 122 | 23 Jan 20242y 8mo ago | 20 Feb 20242y 7mo ago | EOL | 122.0.1 |
| 121 | 19 Dec 20232y 10mo ago | 23 Jan 20242y 8mo ago | EOL | 121.0.1 |
| 120 | 21 Nov 20232y 10mo ago | 19 Dec 20232y 10mo ago | EOL | 120.0.1 |
| 119 | 24 Oct 20232y 11mo ago | 21 Nov 20232y 10mo ago | EOL | 119.0.1 |
| 118 | 26 Sept 20233y ago | 24 Oct 20232y 11mo ago | EOL | 118.0.2 |
| 117 | 29 Aug 20233y 1mo ago | 26 Sept 20233y ago | EOL | 117.0.1 |
| 116 | 1 Aug 20233y 2mo ago | 29 Aug 20233y 1mo ago | EOL | 116.0.3 |
| 115 | 4 Jul 20233y 3mo ago | 31 Mar 2027in 6mo | supported | 115.38.0 |
| 114 | 6 Jun 20233y 4mo ago | 4 Jul 20233y 3mo ago | EOL | 114.0.2 |
| 113 | 9 May 20233y 5mo ago | 6 Jun 20233y 4mo ago | EOL | 113.0.2 |
| 112 | 11 Apr 20233y 6mo ago | 9 May 20233y 5mo ago | EOL | 112.0.2 |
| 111 | 14 Mar 20233y 7mo ago | 11 Apr 20233y 6mo ago | EOL | 111.0.1 |
| 110 | 14 Feb 20233y 8mo ago | 14 Mar 20233y 7mo ago | EOL | 110.0.1 |
| 109 | 17 Jan 20233y 9mo ago | 14 Feb 20233y 8mo ago | EOL | 109.0.1 |
| 108 | 13 Dec 20223y 10mo ago | 17 Jan 20233y 9mo ago | EOL | 108.0.2 |
| 107 | 15 Nov 20223y 11mo ago | 13 Dec 20223y 10mo ago | EOL | 107.0.1 |
| 106 | 18 Oct 20224y ago | 15 Nov 20223y 11mo ago | EOL | 106.0.5 |
| 105 | 20 Sept 20224y ago | 18 Oct 20224y ago | EOL | 105.0.3 |
| 104 | 23 Aug 20224y 1mo ago | 20 Sept 20224y ago | EOL | 104.0.2 |
| 103 | 26 Jul 20224y 2mo ago | 23 Aug 20224y 1mo ago | EOL | 103.0.2 |
| 102 | 28 Jun 20224y 3mo ago | 26 Sept 20233y ago | EOL | 102.15.1 |
| 91 | 10 Aug 20215y 2mo ago | 20 Sept 20224y ago | EOL | 91.13.0 |
| 78 | 30 Jun 20206y 3mo ago | 2 Nov 20214y 11mo ago | EOL | 78.15.0 |