Firefox ignores option selected=“selected”

Question

If you change a dropdown and refresh the page, Firefox seems to ignore the selected attribute.

Answer 1

To show the first item of the dropdown, use ProjectName.ClearSelection();

Put lines in your design page to work on all browser And also put this on code behind on page load.

$(document).ready(function () {
    $("#content_ProjectName option[value='1']").prop("selected", true);
});