title: Get information about customer by email id in magento
body: <p>I want to get information of customer by email id, so i create a method in controller with content:</p>
  
  <pre><code>public function showAction(){
      $customer_email = "abc@mail.com";
      $customer = Mage::getModel("customer/customer");
      $customer-&gt;setWebsiteId(Mage::app()-&gt;getWebsite()-&gt;getId());
      $customer-&gt;loadByEmail($customer_email);
      echo $customer-&gt;getId();
      echo $customer-&gt;getFirstName();
      echo $customer-&gt;getEmail(); 
  }
  </code></pre>
  
  <p>but when run it return null value, i don't know why?. please help me</p>