Global menu not working with some applications

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I’m not an expert, but I suspect that for the global menu to work, applications must support the Wayland protocol KDE AppMenu.

Firefox 138 and Google Chrome 137 have already added support for the global menu in Wayland sessions. This link also mentions that the feature is disabled by default in Firefox and must be manually enabled in about:config via these flags:

  • widget.gtk.global-menu.enabled
  • widget.gtk.global-menu.wayland.enabled

Important: Browsers must run in a native Wayland session, not through the XWayland compatibility layer.