//Getting instance FirebaseFirestore db = FirebaseFirestore.getInstance(); //Getting Reference to "users" collection final DocumentReference docRef = db.collection("users").document("new doc"); //Deleting document named "new doc" docRef.delete().addOnCompleteListener(new OnCompleteListener<Void>() { @Override public void onComplete(@NonNull Task<Void> task) { if(task.isSuccessful()){ //File Deleted }else{ //Something went wrong, logging the error message Log.e(TAG, "onComplete: Error: " + task.getException().getLocalizedMessage() ); } } });