I made a little form for search using Bootstrap 3, and it is perfect on Google Chrome, but the alignment is not very good in Firefox (I am using version 23), the code is:
<form class="col-md-3 input-group pull-right" method="GET">
<input type="text" name="search" id="id_search" class="form-control" maxlength="200">
<span class="input-group-btn">
<input type="submit" class="btn btn-default btn-group" name="submit_search" value="Buscar">
</span>
</form>
You can see it in http://jsfiddle.net/eRpKW/
Is there a simple way to fix it?