To add third-party modules to Drupal 8, follow these steps:
1. Download the module from a trusted source.
2. Extract the files to the /modules directory in your Drupal installation.
3. Enable the module by navigating to /admin/modules and checking the box next to the module name.
4. Configure the module settings (if necessary) by navigating to the appropriate configuration page, which should be listed in the module description.
It is important to note that not all third-party modules are created equal. Always carefully review the module documentation and user reviews before installing to ensure that it is trustworthy and appropriate for your particular Drupal installation. Additionally, if you encounter any errors or issues after installing a new module, it is a good idea to disable it and seek support from the module developer or the Drupal community.
