Since the upgrade from 1.9.0.1 to 1.9.1.0, customer can't register any more.

 

When submit registration, an error appears "Please make sure your password match", I don't understand why.

Solution (worked on Babyland)

Go to file app/code/core/Mage/Customer/Model/Customer.php



Find the below code : 

$confirmation = $this->getConfirmation(); 

Change this to : 

$confirmation = $this->getPasswordConfirmation();

Issue now fixed on Babyland.