Twitter Bootstrap - Drop Down Menu - Arrows Keys Are Not Working For Input Tags In Firefox

Requirement I want to put a login form inside the drowdown menu with username and password field, I am able to do that. all works well except the below issue, Issue While typing i

Solution 1:

Looks like kind of bug to me but as a simple fix, stop propagation of onkeydown event:

DEMO

$('#email').on('keydown',function(e){
    e.stopPropagation();
});