why is librewolf's expired certificate page showing me dates in that weird middle endian mm/dd/yyyy format instead of something sensible like yyyy/mm/dd or even dd/mm/yyyy?

I just noticed it's doing the same for the mouseover text on posts on akkoma that shows the date. I hate it so much. icecat is not doing this, I think it's because my language is set to en_US in librewolf because there's no other options showing up

enabling the option to respect the operating system locale (and remembering to refresh) at least fixed the mouseover text but expired certificate pages are still mm/dd/yyyy for some reason