Hello, Check if your Internet security software (including firewalls, antivirus programs, anti-spyware programs and more) is blocking the connection to the Internet. For instructions on how to configure some programs, read [[Configure firewalls so that Firefox can access the Internet]]. Make sure your system's date, time and timezone settings are configured correctly. Firefox may have issues validating the website's security certificate if the date/time is incorrect. Wireless connection: If you are using a wireless connection, make sure that you are using the correct access point. If you have the same problems loading websites in all browsers, in the following link you will find some possible causes and ways to solve them. [[Firefox and other browsers can't load websites]]