Although a web content filter and a firewall both improve network security, they’re quite different. In a nutshell, a firewall is a network security tool that functions as a traffic controller. It regulates incoming and outgoing network traffic based on a set of pre-defined security rules. For example, it may stop incoming traffic from specific IP addresses known for malicious activity, or it may prevent malicious traffic from leaving a network.
On the other hand, a web content filter blocks web-based content such as pornography, social media websites, or malicious websites based on its programming to improve productivity, ensure compliance, and protect users.