I just checked the bug database, and this has never been filed as an issue, for what it's worth. The closest to it was the offhand mention in https://bugzilla.mozilla.org/show_bug.cgi?id=1509560 which otherwise focused on column resizing.

I filed https://bugzilla.mozilla.org/show_bug.cgi?id=1595961 just now to track this, but I have a hard time reconciling this specific example with the "requested for years" characterization in the original comment...

If you are able to file issues you run into, that would be much appreciated; people can't fix problems they're not aware of.