Selected date is going on the top in the datepicker on popup for firefox

[minivetsystem]

Hello,
I'm applying the anypicker on a textbox into a popup. So there is current date is showing by default php code. So selected date should work, as it is working in chrome. But in firefox it is scrolling once like the image below

Here is my code

//Set date time picker
var curFullDate = new Date();
var curYear = curFullDate.getFullYear();
if (userAgent !== "") { //Firefox
var monthArr = [
"January",
"Febary",
"March",
"April",
"May",
"June",
"July",
"August",
"September",
"October",
"November",
"December",
];
var curMonth = curFullDate.getMonth();
curMonth = monthArr[curMonth];
} else {
var curMonth = curFullDate.getMonth() + 1;
}
console.log(curMonth);
var curDate = curFullDate.getDate();
var curHours = curFullDate.getHours();
var curAP = (curHours > 12) ? "PM" : "AM";
if (userAgent === "") {
curHours = (curHours > 12) ? curHours - 12 : curHours;
}
curHours = (curHours > 9) ? curHours : "0" + curHours;
var curMinutes = curFullDate.getMinutes();
var curSeconds = curFullDate.getSeconds();
curMinutes = (curMinutes > 9) ? curMinutes : "0" + curMinutes;

                                if (userAgent !== "") { //Firefox
                                    //"October 13, 1975 11:13:00"
                                    var curFormat = curMonth + " " + curDate + ", " + curYear + " " + curHours + ":" + curMinutes + ":" + curSeconds;
                                } else {
                                    var curFormat = curYear + "-" + curMonth + "-" + curDate + " " + curHours + ":" + curMinutes + " " + curAP;
                                }
                                
                                //console.log(curFormat);
                                var minDate = new Date(curFormat);
                                var maxDate = new Date(curFormat);
                                maxDate.setFullYear(maxDate.getFullYear() + 5);
                                //console.log(minDate);
                                //console.log(maxDate);
                                var selectedDate = new Date(curFormat);
                                
                                var settings = {
                                    dateTimeFormat: "Y-MM-dd HH:mm",
                                    minValue: minDate,
                                    maxValue: maxDate,
                                    //selectedDate: selectedDate
                                };
                                
                                $("#popupContent #addOfferForm").find("input[name=\"start_date\"]").applyDateTimePicker(settings);

Here is the applyDateTimePicker function

$.fn.applyDateTimePicker = function(data) {
var minDate =new Date();
var maxDate = new Date();
var theme = "Default", userAgent = navigator.userAgent;

if (userAgent.match(/Android|Silk/i)) {
    theme = "Android";
}
else if (userAgent.match(/iPhone|iPad|iPod/i)) {
    theme = "iOS";
}
else if (userAgent.match(/IEMobile/i)) {
    theme = "Android";//"Windows";
}

minDate.setFullYear(minDate.getFullYear() - 118);

var settings = {
    mode: "datetime",
    inputDateTimeFormat: "Y-MM-dd hh:mm AA",
    dateTimeFormat: "Y-MM-dd hh:mm AA",
    theme: theme,  // "Defaualt", "iOS", "Android", "Windows",
    minValue: minDate,
    maxValue: maxDate,

    headerTitle: {
        markup: "<span class='ap-header__title'>" + DATEPICKER_HEADER_TITLE + "</span>",
        type: "Text",
        contentBehaviour: "Dynamic", // Static or Dynamic
        format: "" // DateTime Format
    },

    i18n: {
        headerTitle: DATEPICKER_HEADER_TITLE,
        setButton: DATEPICKER_SET_BUTTON,
        cancelButton: DATEPICKER_CANCEL_BUTTON,
        dateSwitch: DATEPICKER_DATE_TAB,
        timeSwitch: DATEPICKER_TIME_TAB
    }
};

if (data && data !== undefined && typeof data === "object") {
    // Merge data into settings
    $.extend( settings, data );
}

this.AnyPicker(settings);

};

Please try to give me solution as soon as possible