Regressed <option> cannot be selected in certain circumstances

Published: | Categories: HTML


The <option> element cannot be selected and the parent <select> element won’t be closed, when Event.preventDefault is called in a mouseup event handler on <select> or its ancestors. The iButton jQuery plug-in is known to be affected. Mozilla developers have identified the cause and are working on a solution.

Update: This issue has been fixed with Firefox 40.0.3 shipped on .