06-28-2010, 08:00 AM
Xul.dll is a file that's used by the "FireFox" browser to help it download and process a variety of web pages. Unfortunately, it's also prone to a lot of problems which cause a series of different errors that are displayed when you try and use FireFox. This issue is actually very easy to fix and although many people do experience it every day on their computers, you can resolve it relatively quickly and easily.