Domain names are assigned to IP addresses through a Domain Name System (DNS) server. Firefox may have issues validating the website's security certificate if the date/time is incorrect.Įvery web server connected to the Internet is assigned a number known as its IP address.
Make sure your system's date, time and timezone settings are configured correctly. For instructions on how to configure some programs, read Configure firewalls so that Firefox can access the Internet. Security software is blocking the connectionĬheck if your Internet security software (including firewalls, antivirus programs, anti-spyware programs and more) is blocking the connection to the Internet.
