Title field input textbox way too long in firefox browser This looks a very simple question but I seem to find it rather difficult to find a very easy solution...

Textboxes in forms are way too long when looking at it using Firefox but not in Chrome. In Chrome, container widths are respected so the textbox width does not go over containers' width. However, default size of 60 when using Firefox just breaks the container width declaration and does not get respected...
I had the same css issue. 
you need to address the input field correctly with the inputtype "text":

e.g. 

.mywrapper-form input[type="text"] {
   width: 100px;
}