Interface                 Plug                            Slot                             Notes
audio-playback            firefox:audio-playback          :audio-playback                  -
audio-record              firefox:audio-record            :audio-record                    -
avahi-observe             firefox:avahi-observe           :avahi-observe                   -
browser-support           firefox:browser-sandbox         :browser-support                 -
camera                    firefox:camera                  :camera                          -
content[gnome-3-38-2004]  firefox:gnome-3-38-2004         gnome-3-38-2004:gnome-3-38-2004  -
content[gtk-3-themes]     firefox:gtk-3-themes            gtk-common-themes:gtk-3-themes   -
content[icon-themes]      firefox:icon-themes             gtk-common-themes:icon-themes    -
content[sound-themes]     firefox:sound-themes            gtk-common-themes:sound-themes   -
cups-control              firefox:cups-control            :cups-control                    -
dbus                      -                               firefox:dbus-daemon              -
desktop                   firefox:desktop                 :desktop                         -
desktop-legacy            firefox:desktop-legacy          :desktop-legacy                  -
gsettings                 firefox:gsettings               :gsettings                       -
hardware-observe          firefox:hardware-observe        :hardware-observe                -
home                      firefox:home                    :home                            -
joystick                  firefox:joystick                :joystick                        -
mpris                     -                               firefox:mpris                    -
network                   firefox:network                 :network                         -
network-observe           firefox:network-observe         -                                -
opengl                    firefox:opengl                  :opengl                          -
personal-files            firefox:dot-mozilla-firefox     :personal-files                  -
removable-media           firefox:removable-media         :removable-media                 -
screen-inhibit-control    firefox:screen-inhibit-control  :screen-inhibit-control          -
system-files              firefox:etc-firefox-policies    :system-files                    -
system-packages-doc       firefox:system-packages-doc     :system-packages-doc             -
u2f-devices               firefox:u2f-devices             :u2f-devices                     -
unity7                    firefox:unity7                  :unity7                          -
upower-observe            firefox:upower-observe          :upower-observe                  -
wayland                   firefox:wayland                 :wayland                         -
x11                       firefox:x11                     :x11                             -