Why is NoScript.net a key tool to Internet users? Because it makes things a ton more secure.

People like to think that Firefox is secure. However, there have been flaws found in Firefox that lead to exploits. In almost every case, scripting was part of the problem.

The noscript Firefox Addon is a very good tool for plugging that whole. I will not lie and say it is a dream and perfectly easy to use. It will take a little time for people to learn what they do and do not want to allow. However, once you let scripts from the major players run, what is left is a lot safer web. The random scripts from ad servers that are located in questionable places, which are loaded with attack scripts, will no longer have any leverage over Firefox.

And if you find it has gone to far, you can always just allow an entire page, quickly change settings, and so on. It just takes using it and getting used to how it works.