firefox:
  addons:
    FoxyProxy Standard: https://addons.mozilla.org/en-US/firefox/addon/foxyproxy-standard/
    KeePassXC-Browser: https://addons.mozilla.org/en-US/firefox/addon/keepassxc-browser/
    GNOME Shell integration: https://addons.mozilla.org/en-US/firefox/addon/gnome-shell-integration/