I’ve just read that Firefox plans to support ESR 115 till March 2025 due to old Windows 7/8 clients still using it and not having other alternative.
How can I stay on the ESR 115 branch on my Windows 11?
Because I have a feeling it will auto-update to ESR 128 in about 3 weeks.
Change of plans 
, users of old insecure Windows should change OS ASAP, as it is in their best interest to stay safe.
Additionally, their hacked PC may become a part of a botnet and cause harm to others. (I’m paiting here the worst case scenario, but still quite possible )
So once ESR 128 is out, I’ll use "strict_min_version": "128.0" , just as I planned originally.