focusButton(buttonToFocus) {
      await this.shadowRoot.querySelector("moz-button-group").updateComplete;
      if (buttonToFocus === "fullpage") {
        this.shadowRoot
          .getElementById("full-page")
          .focus({ focusVisible: true });
      } else if (buttonToFocus === "first") {
        this.shadowRoot
          .querySelector("moz-button-group")
          .firstElementChild.focus({ focusVisible: true });
      } else if (buttonToFocus === "last") {
        this.shadowRoot
          .querySelector("moz-button-group")
          .lastElementChild.focus({ focusVisible: true });
      } else {
        this.shadowRoot
          .getElementById("visible-page")
          .focus({ focusVisible: true });
      }
    }
  }

  customElements.define("screenshots-buttons", ScreenshotsButtons, {
    extends: "toolbar",
  });
}
PK