Hi, installed this in Umbraco 7.1.6. Worked great in Google Chrome, but in Firefox I wan not able to click in the input-field.

Found a similar topic here: https://github.com/imulus/Archetype/issues/61

To this working in Firefox I added this code in the sortablestringlist.js just after the loadCss at the bottom:

setTimeout(function () { 
      $('.stringlist-property input')
         .bind('mousedown.ui-disableSelection selectstart.ui-disableSelection', function (e) {
             e.stopImmediatePropagation();
         });
   }, 1000);