A personal firewall is a security program that oversees all of your computer's connections to the Internet. It may be included as part of an Internet security suite, or it may be a free-standing program. Most personal firewalls will deny Internet access to any program, or a new version of any program, unless you have specifically allowed access. This article will help you find information about configuring your firewall to work with Firefox.
Find out which firewall is installed
If you know which firewall or Internet security suite you are running, skip to the next section.
Depending on your Windows version, do the following:
- Windows 7/8: Find it under the Security section in Windows Action Center. For more information, see What is Action Center? at microsoft.com.
- Windows XP SP3/Vista: Find it under the Firewall section in Windows Security Center. For more information, see Using Windows Security Center at microsoft.com.
If you can't still detect your firewall with the above steps, try to run Enum Process (not created by Mozilla) that is an application that detects many common firewalls:
- Download Enum Process.
- After downloading, double-click EnumProcess.exe.
- Select .
- In the drop-down menu to the right, select Simple.
Go to your distribution's firewall documentation.
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