--- - name: Customize Firefox | Check if Firefox is installed command: "which firefox" register: firefox_check ignore_errors: yes - name: Customize Firefox | Run firefox - Make sure its initialised shell: cmd: "nohup firefox &" when: firefox_check.rc == 0 - name: Customize Firefox | Close firefox if it's running shell: cmd: "pkill firefox" ignore_errors: true when: firefox_check.rc == 0 - name: Customize Firefox | Run Firefox Tweaks shell: "cd {{ home_directory }}/Downloads/WhiteSur-gtk-theme/ && ./tweaks.sh -f" when: firefox_check.rc == 0