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Firefox Version Support Timeline
Cycle | Release Date | Support Ends | EOL Date | Latest | Status |
|---|---|---|---|---|---|
146 | 2025-12-09 | - | - | 146.0.1 | Active |
145 | 2025-11-11 | - | 2025-12-09 | 145.0.2 | End of Life |
144 | 2025-10-14 | - | 2025-11-11 | 144.0.2 | End of Life |
143 | 2025-09-16 | - | 2025-10-14 | 143.0.4 | End of Life |
142 | 2025-08-19 | - | 2025-09-16 | 142.0.1 | End of Life |
141 | 2025-07-22 | - | 2025-08-19 | 141.0.3 | End of Life |
140LTS | 2025-06-24 | - | 2026-09-16 | 140.6.0 | Active |
139 | 2025-05-27 | - | 2025-06-24 | 139.0.4 | End of Life |
138 | 2025-04-29 | - | 2025-05-27 | 138.0.4 | End of Life |
137 | 2025-04-01 | - | 2025-04-29 | 137.0.2 | End of Life |
136 | 2025-03-04 | - | 2025-04-01 | 136.0.4 | End of Life |
135 | 2025-02-04 | - | 2025-03-04 | 135.0.1 | End of Life |
134 | 2025-01-07 | - | 2025-02-04 | 134.0.2 | End of Life |
133 | 2024-11-26 | - | 2025-01-07 | 133.0.3 | End of Life |
132 | 2024-10-29 | - | 2024-11-26 | 132.0.2 | End of Life |
131 | 2024-10-01 | - | 2024-10-29 | 131.0.3 | End of Life |
130 | 2024-09-03 | - | 2024-10-01 | 130.0.1 | End of Life |
129 | 2024-08-06 | - | 2024-09-03 | 129.0.2 | End of Life |
128LTS | 2024-07-09 | - | 2025-09-16 | 128.14.0 | End of Life |
127 | 2024-06-11 | - | 2024-07-09 | 127.0.2 | End of Life |
126 | 2024-05-14 | - | 2024-06-11 | 126.0.1 | End of Life |
125 | 2024-04-16 | - | 2024-05-14 | 125.0.3 | End of Life |
124 | 2024-03-19 | - | 2024-04-16 | 124.0.2 | End of Life |
123 | 2024-02-20 | - | 2024-03-19 | 123.0.1 | End of Life |
122 | 2024-01-23 | - | 2024-02-20 | 122.0.1 | End of Life |
121 | 2023-12-19 | - | 2024-01-23 | 121.0.1 | End of Life |
120 | 2023-11-21 | - | 2023-12-19 | 120.0.1 | End of Life |
119 | 2023-10-24 | - | 2023-11-21 | 119.0.1 | End of Life |
118 | 2023-09-26 | - | 2023-10-24 | 118.0.2 | End of Life |
117 | 2023-08-29 | - | 2023-09-26 | 117.0.1 | End of Life |
116 | 2023-08-01 | - | 2023-08-29 | 116.0.3 | End of Life |
115LTS | 2023-07-04 | - | 2026-03-15 | 115.31.0 | Ending Soon |
114 | 2023-06-06 | - | 2023-07-04 | 114.0.2 | End of Life |
113 | 2023-05-09 | - | 2023-06-06 | 113.0.2 | End of Life |
112 | 2023-04-11 | - | 2023-05-09 | 112.0.2 | End of Life |
111 | 2023-03-14 | - | 2023-04-11 | 111.0.1 | End of Life |
110 | 2023-02-14 | - | 2023-03-14 | 110.0.1 | End of Life |
109 | 2023-01-17 | - | 2023-02-14 | 109.0.1 | End of Life |
108 | 2022-12-13 | - | 2023-01-17 | 108.0.2 | End of Life |
107 | 2022-11-15 | - | 2022-12-13 | 107.0.1 | End of Life |
106 | 2022-10-18 | - | 2022-11-15 | 106.0.5 | End of Life |
105 | 2022-09-20 | - | 2022-10-18 | 105.0.3 | End of Life |
104 | 2022-08-23 | - | 2022-09-20 | 104.0.2 | End of Life |
103 | 2022-07-26 | - | 2022-08-23 | 103.0.2 | End of Life |
102LTS | 2022-06-28 | - | 2023-09-26 | 102.15.1 | End of Life |
91LTS | 2021-08-10 | - | 2022-09-20 | 91.13.0 | End of Life |
78LTS | 2020-06-30 | - | 2021-11-02 | 78.15.0 | End of Life |
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What is EOL?
EOL (End of Life) means the product no longer receives official updates, security patches, or technical support.
Why Track EOL?
Using unsupported software can lead to security vulnerabilities, compatibility issues, and compliance risks.
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