Bug 41371: Temporary hack to fix language selector popup position

      gMainPane.onPrimaryBrowserLanguageMenuChange(event);

    });

    // Temporary hack to cause the menu popup to resize itself just after being

    // shown. See tor-browser#41371

    // We get ~one frame of a potentially badly sized popup, and then the popup

    // should re-adjust to the new size.

    // TODO: Remove with firefox 115 since this is fixed properly in

    // mozilla-central 107.

    menulist.addEventListener("popupshown", () => {

      const popupBox = menulist.menupopup;

      // We change a layout parameter and then force a relayout. We choose

      // "min-height: 0" since we expect this won't change the displayed result

      // but is enough to force the relayout.

      const minHeight = popupBox.style.minHeight;

      popupBox.style.minHeight = 0;

      popupBox.getBoundingClientRect();

      popupBox.style.minHeight = minHeight;

    });

    gMainPane.updatePrimaryBrowserLanguageUI(Services.locale.appLocaleAsBCP47);

  },