

The core reason here is that the developer has created the extension with performance in mind. The extension has a size of only 30 Kilobytes for example while popular ad blockers for Firefox often cross the 700 Kilobyte mark easily. What sets it apart from established extensions is the fact that it is as lightweight as an adblocker can possible get without sacrificing any of the blocking itself. HellBoy Firewall, despite the name that suggests otherwise, is an ad-blocker for Firefox. From heavyweights such as AdBlock Plus (which has been heavily criticized recently for its business practices) to the powerful script blocker NoScript. Most ad-blockers are large in size and resource intensive at times, which can be especially problematic if you are running Firefox on a system that is not blessed with lots of RAM or processing power. Firefox users can select between several advertisement and script blockers for the web browser.
