>>548409
That's not even the right bug though.
Firefox uses GTK. In the past, people begged the Gnome devs to implement a better file picker for GTK 2, but of course they didn't and now they won't add it either, because GTK 2 only receives critical security fixes.
However, considering Firefox and Gimp are currently being ported to GTK 3, you'd expect they use the GTK file picker as well, right?
Well, guess what, they do but the file picker is still the same old piece of shit in GTK 3.
In short:
>Gnome devs
https://bugzilla.gnome.org/show_bug.cgi?id=141154