Wikimedia Bugzilla is closed!

When accounts are created 'via email', a randomly generated password is sent to the email address. However with the addition of the "required" attribute to the password fields, browsers that follow the HTML5 standards (Opera, Safari) block the user from creating the account for leaving the password field blank.

As you can see this creates the pardox where the feilds should be left blank, however are required to be entered to submit the form, leaving the user confused and with the false impression that the password that they entered will become the accounts password. The "required" attribute should be removed and either replaced with a javascript check that only runs when the user clicks 'create account', or just be replaced with the standard server side check when the form is submitted.