You can visit the Facebook Help Center or the Facebook Help Community to see if your issue is a known Facebook website problem. If you cannot connect in any browser, the Facebook site may be down.For instructions on configuring specific firewall programs, see Configure firewalls so that Firefox can access the Internet. Check to make sure your Internet security software (such as a firewall, antivirus, or anti-spyware program) is set to allow Firefox.Follow the troubleshooting steps below, starting with the Clear cookies and cache section.If you can connect in another browser, but not in Firefox:.Check to see if you can connect in another browser such as Internet Explorer or Microsoft Edge Safari Epiphany.If you cannot connect to the Facebook website at all in Firefox: 2.3 Check if JavaScript is being blocked.
