There is nothing more frustrating than unsuccessfully trying to access your Facebook account, and receive some kind of error message in return. Fortunately, some of these Facebook login problems are quite easily fixed by tweaking your web browser settings (Internet Explorer, Firefox, Safari, Opera, etc.) In this tutorial, we will show you two of the most common problems you may encounter which are not due to invalid credentials you entered or the Facebook servers themselves.
Somewhat surprisingly, it is not even possible to use Facebook without cookies enabled; if you try to go through Facebook login, here is the error message you will receive (in other words, you will not even be able to go beyond this point until you have enabled cookies inside your web browser).
"Facebook Login - Cookies Required. Cookies are not enabled on your browser. Please adjust this in your security preferences before continuing" is the exact error message you will get.