Here is the 22 years old ticket: https://bugzilla.mozilla.org/show_bug.cgi?id=125419
Firefox is probably the worst browser in the terms of feeling native to macOS.
These aren’t minor, cosmetic issues but glaring omissions in functionality.
Here’s one on the missing support for the macOS password autofill api. https://bugzilla.mozilla.org/show_bug.cgi?id=1650212
Safari and Orion are much better options.
That was 3 whole CPU architectures ago, damn.
Here is the 22 years old ticket: https://bugzilla.mozilla.org/show_bug.cgi?id=125419