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Firefox 149 vs 143
Version Support Lifecycle Comparison
vs
Version 149
149
End of Life
Release Date2026-03-24
Support Ends-
EOL Date2026-04-21
Days LeftExpired 88 days ago
Latest Version149.0.2
Version 143
143
End of Life
Release Date2025-09-16
Support Ends-
EOL Date2025-10-14
Days LeftExpired 277 days ago
Latest Version143.0.4
💡 Upgrade Recommendation
Both versions have similar support status. Choose based on your specific requirements.
About Version Comparison
This page compares Firefox versions 149 and 143. Learn about each version's release date, support end date, and EOL (End of Life) date to make informed upgrade decisions.
Other Version Comparisons
152 vs 151152 vs 150152 vs 149152 vs 148152 vs 147152 vs 146152 vs 145152 vs 144152 vs 143151 vs 150151 vs 149151 vs 148151 vs 147151 vs 146151 vs 145151 vs 144151 vs 143150 vs 149150 vs 148150 vs 147150 vs 146150 vs 145150 vs 144150 vs 143149 vs 148149 vs 147149 vs 146149 vs 145149 vs 144149 vs 143148 vs 147148 vs 146148 vs 145148 vs 144148 vs 143147 vs 146147 vs 145147 vs 144147 vs 143146 vs 145146 vs 144146 vs 143145 vs 144145 vs 143144 vs 143
Showing comparisons for the latest 10 versions. Firefox has 53 versions total.