Custom cookies not created in Firefox - NS_BINDING_ABORTED

Question

This is an ASP.NET MVC application. The cookies are not getting created in Firefox. There is no such issue in Chrome or Edge.

HttpCookie myCookie = new HttpCookie("myCookie")
{
   Value = "some_value",
   Expires = DateTime.Now.AddYears(1)
};

HttpContext.Current?.Response.Cookies.Add(myCookie);

• I have tested this in a fresh installation of Firefox 123.0 64-bit.
• The site is not a local site and it has https.
• I have turned off the Enhanced Tracking Protection and also added the domain of my website in Settings > Privacy > Cookies - Manage Exceptions.

UPDATE:

I see this error in browser console for the Ajax POST call - NS_BINDING_ABORTED.

This is the JS Method:

function redirectTo(obj, url) {
   xhr('/api/MyController/SetCookie', JSON.stringify(obj), () => {
 });
 window.location.href = url;
}

Answer 1

From what I understood here, Firefox does this with any page redirection code and if there is another process running already.

So, I have added a delay and it works fine now.

function redirectTo(obj, url) {
            xhr('/api/MyController/SetCookie', JSON.stringify(obj), () => {
            });
            //window.location.href = url;            
            setTimeout(function () {                
                window.location.href = url;
            }, 500);    
        }