使用提供程序帐户重置Firebase密码

我正在使用Firebase一段时间，但发现一个小问题，我认为这不是什么大问题，该问题是，当我使用提供者帐户(如"facebook"帐户)登录并输入Facebook帐户的电子邮件时，忘记了密码字段中应该显示一个错误，但发生的是该方法成功，我的问题是，当我重置密码时，我的facebook帐户密码已更改或发生了什么，这是我的方法，如下:

I am using firebase for a little while and I find a little issue I think it's not a big issue, that issue is that when I login with provider account like: "facebook" account and I enter facebook account email in forgot password field this should show an error but what happens is that the method success, my question is that when I reset password is my facebook account password changed or what happens, heres my method below:

 mAuth.sendPasswordResetEmail(Email).addOnCompleteListener(new OnCompleteListener<Void>() {
                @Override
                public void onComplete(@NonNull Task<Void> task) {
                    if (task.isSuccessful()){Toast.makeText(forgot.this,"Send",Toast.LENGTH_SHORT).show();mProgress.hide();}
                    else {Toast.makeText(forgot.this,"Not send",Toast.LENGTH_SHORT).show();mProgress.hide();}}});}

我需要一种方法来检查用户电子邮件是否为提供者电子邮件(例如"facebook，twitter和google")并返回.

I need a method that check if user email is an provider email like "facebook,twitter and google" and return.

任何帮助兄弟.