Firefox
AppFirefox 153 is the newest actively maintained release, currently at patch 153.0. 3 of 54 tracked cycles remain supported. The next cycle scheduled to reach end-of-life is 140, on September 29, 2026.
Release lifecycle
Actively maintainedSecurity support onlyEnd of life
Today
153Latest
153.0 · Jul 21, 2026
152
EOL Jul 21, 2026
151
EOL Jun 16, 2026
150
EOL May 18, 2026
149
EOL Apr 21, 2026
148
EOL Mar 24, 2026
147
EOL Feb 24, 2026
146
EOL Jan 13, 2026
145
EOL Dec 9, 2025
144
EOL Nov 11, 2025
143
EOL Oct 14, 2025
142
EOL Sep 16, 2025
141
EOL Aug 19, 2025
140
140.13.0 · Jul 21, 2026
139
EOL Jun 24, 2025
138
EOL May 27, 2025
137
EOL Apr 29, 2025
136
EOL Apr 1, 2025
135
EOL Mar 4, 2025
134
EOL Feb 4, 2025
133
EOL Jan 7, 2025
132
EOL Nov 26, 2024
131
EOL Oct 29, 2024
130
EOL Oct 1, 2024
129
EOL Sep 3, 2024
128
EOL Sep 16, 2025
127
EOL Jul 9, 2024
126
EOL Jun 11, 2024
125
EOL May 14, 2024
124
EOL Apr 16, 2024
123
EOL Mar 19, 2024
122
EOL Feb 20, 2024
121
EOL Jan 23, 2024
120
EOL Dec 19, 2023
119
EOL Nov 21, 2023
118
EOL Oct 24, 2023
117
EOL Sep 26, 2023
116
EOL Aug 29, 2023
115
115.38.0 · Jul 21, 2026
114
EOL Jul 4, 2023
113
EOL Jun 6, 2023
112
EOL May 9, 2023
111
EOL Apr 11, 2023
110
EOL Mar 14, 2023
109
EOL Feb 14, 2023
108
EOL Jan 17, 2023
107
EOL Dec 13, 2022
106
EOL Nov 15, 2022
105
EOL Oct 18, 2022
104
EOL Sep 20, 2022
103
EOL Aug 23, 2022
102
EOL Sep 26, 2023
91
EOL Sep 20, 2022
78
EOL Nov 2, 2021
202120222023202420252026
Data sourced from endoflife.date.
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