I have a question about NoScript, because it seems to be very popular download.
Does it have any effect on regular surfing, like preventing you form seeing certain things?
Short answer - yes. But only if you want it to.
It can be configured to block all types of scripts, including Java, Javascript, Flash, Silverlight, etc.
However, you can then add sites to your whitelist and allow one or more of these scripts for any site.
It's a very powerful tool which can help keep you safer, and it can also be used as a content blocker (it replaced Flashblock for me) to block almost anything you don't want.
Give it a try - I was dubious at first after a friend recommended it, but I tried it out and afetr a week, I won't use Firefox without it.