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Still using 10.12 and 10.14 so happy about that. Also using El Capitan, but that one has only old version of Firefox.
 
September? Yeah. I think they will continue security support for longer since Firefox is the only game in town. With that I don't see traffic decreasing for us older users who need a secure browser on these older systems.
 
Security updates support has been extended yet again to March 2026.
https://whattrainisitnow.com/release/?version=esr
Screenshot 2025-09-03 at 15-34-44 Firefox ESR schedule.png
 
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