This video is the first in a series of Firebase tutorials. It is an in depth guide on how to get you Unity game to Authenticate using Google Firebase.
Keytool command line code (Windows):
Navigate to Java JDK bin:
cd "PATH_TO_JAVA_JDK"/bin"
While command line is in the Java JDK Bin Directory:
keytool -list -v -keystore "PATH_TO_KEYSTORE_HERE" -alias YOUR_ALIAS_NAME_HERE