Enable Debug from Firebase SDK Plugin
Go to Firebase SDK Plugin Properties
2. Enable Debug
Do not forget to turn this feature off when exporting for the final/public release of your app. Otherwise, your database might be susceptible to attacks.
METHOD 1: Using Browser Tools
Simply Press F12 and Go to the "Console" Tab.
METHOD 2: Using Eruda Console Plugin
Simply add Eruda Console Plugin to your Project to start Debugging. An example has been provided in the BASIC Pack. See Debugging.c3p Example.
(This plugin also works on Android and iOS)