Use Popup Cart Lite for WooCommerce plugin to show lightbox popup cart for add to cart action.
Customization for Popup Cart Lite for WooCommerce for WooCommerce.
11 default icons and the power to add your own icon.
Border length length and type for corners.
Border length length and type for buttons.
You can install Popup Cart Lite for WooCommerce for WooCommerce via WordPress plugin uploader unzipping the file.
At you will need to set issue permissions for uploads directory and all the sub directories inside it to 777..
Filezilla will now set the file permissions for all the Once it is done you can go back to WooCart Pro Settings and double-click Refresh plagin button..
Author only patched this in PRO version but there 2015 so one would think it'd be not hard for him to update version
Read more