You might not know it, but Firefox was once widely considered to be an innovative browser. It wasn’t just an alternative to Internet Explorer (and now Chrome). Firefox introduced honest-to-goodness new features that people loved and rely on to this day.
Update to the bug I filed that was introduced in Firefox 116 - apparently, it isn’t a bug:
There’s an open needinfo for the author of the regressor, so I don’t have much of a comment, but… it is very clearly a bug and very clearly a regression - Chrome doesn’t do this (and actually has the newly claimed Firefox behavior) – and neither did Firefox before it regressed.