At first, noScript is a browser tool which prevents some websites from serving scripts to your web browsers. It works by scanning the code and blocks scripts that might contain malicious code. At first, it might seem a little bit too complicated for people who don't know much about internet security or browser security. But noScript has actually gained great support from most major web browsers in the past few years. In fact, even Microsoft decided to make a program for all of its web browsers called Microsoft's ActiveX Blocker.
The main disadvantage to using the program is that it doesn't come with a download. To download the program, you need to download it from a website that has it already for free. If you have no idea what script is, here's a short explanation of what it does. It is a built-in script blocker from Mozilla Firefox that runs as an add-on to your browser. With this program, you can block most unwanted scripts when browsing the web. It works by scanning the web pages that you visit and checks if they are loaded with any malicious scripts. If there are, it displays a small notification telling you to disable the script.
Even if the program is free, it doesn't come with a download. It is also not as easy to use as many others, because the settings are not well hidden. As mentioned before, downloading the program will require a payment, so make sure that you know the right payment details for downloading the program. Many people have been tricked into paying for software programs they don't really need.