Here are the steps on how to add AI plugins to Figma:

1. Open Figma and go to the Plugins tab.
2. Click the Marketplace button.
3. In the search bar, type “ai” or any other keyword related to the AI plugin you want to install.
4. Click on the plugin you want to install.
5. Click the Install button.
6. Once the plugin is installed, it will appear in the Plugins tab.