When I try to upload a file from the Linux version of Firefox, a open file dialog shows up, but it is not the native open file dialog box of my desktop environment (I tried both KDE and Gnome, on Fedora, EndeavourOS, and Ubuntu). In fact, the sidebar for selecting locations is extremely limited. It doesn't have locations I bookmarked in Dolphin or Nautilus, and it does not have a tab for Network locations. This makes navigation very annoying for a common user.
In contrast, other web browsers such as Chromium uses the native open file dialog box. It has all the bookmarked locations, network locations, etc. I hope that you can make a change to this design, as Firefox is the default web browser of many Linux distros, and such experience is not very welcoming to new Linux users. Thank you.
