Description of problem: https://github.com/stransky/gecko-dev Wayland native builds does not have border nor shadows on popup windows like content menu and menu bars. Shadows are present on no-autohide menus like hamburger menu and download/history poppus.
May be caused by wrong CSD status - I see other gnome apps does have the thin shadows around popup menus.
(In reply to Martin Stransky from comment #1) > May be caused by wrong CSD status - I see other gnome apps does have the > thin shadows around popup menus.
This bug appears to have been reported against 'rawhide' during the Fedora 27 development cycle. Changing version to '27'.
This bug appears to have been reported against 'rawhide' during the Fedora 29 development cycle. Changing version to '29'.
With firefox-wayland-63.0.3-2.fc29.x86_64 gtk3-3.24.1-1.fc29.x86_64 menus do have borders but still miss shadows.
Lets track it upstream.