Strange Page Bug On Firefox

I'm using Choosen and Twitter Bootstrap in my project. Here is jsfiddle http://jsfiddle.net/Wexcode/7HLyZ/3/ Try to open this jsFiddle on 2 browsers: Firefox and Chrome On chrome i

Solution 1:

Check out this: http://jsfiddle.net/7HLyZ/35/

Changes:

.collapse.in {height: auto;}

<a class="accordion-toggle" data-toggle="collapse" data-parent="#accordion2" href="#collapseOne">Collapsible Group Item #1</a>

<a class="accordion-toggle" data-toggle="collapse" data-parent="#accordion2" href="#collapseTwo" aria-hidden="true">Collapsible Group Item #2</a>