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Firefox 145 vs 146
Version Support Lifecycle Comparison
vs
Version 145
145
End of Life
Release Date2025-11-11
Support Ends-
EOL Date2025-12-09
Days LeftExpired 38 days ago
Latest Version145.0.2
Version 146
146
Active
Release Date2025-12-09
Support Ends-
EOL DateTBD
Latest Version146.0.1
💡 Upgrade Recommendation
We recommend upgrading from 145 to 146. 146 has a longer support lifecycle.
About Version Comparison
This page compares Firefox versions 145 and 146. Learn about each version's release date, support end date, and EOL (End of Life) date to make informed upgrade decisions.