I often get asked whether NoScript supports blacklisting. The short answer is yes, but the real question is why do you need it? Used properly (which happens to be the default settings), NoScript will block javascript from any site unless it is expressly given permission. So there's no real reason to specifically blacklist javascript from particular sites, because it will already be blocked by default.
However, there may be cases where you've changed the default settings and now want to take advantage of blacklisting to compensate for those changes. Here's How to Blacklist Websites via NoScript.

I followed your instructions recently on how to run noScript in Firefox. I can’t afford antispyware so want to do whatever I can to keep my computer up and running. My question is this. I can handle having to allow script on some pages to do what I want to to allow the page, but what I find really frustrating is whenever my firefox is shut down, when it comes back up, I have to reenter my password everywhere I visit. I do have checked to delete information when closing firefox, but the password option is not checked, but it still deletes them each time. Is there a workaround for this. As I said, I want to keep my computer safe, but I use it a lot for surfing and blog hopping on scrapbooking sites, etc., so it really is aggravating. If it’s necessary for me to keep no script as is, then so be it, but I would love to be able to at least keep my passwords saved on the sites I visit regularly.
Hi Lynn,
Glad to hear you’re using NoScript – it offers really important protection.
As for the Firefox issue with the passwords, in Firefox, click Tools | Options and select the Security tab. Check “Remember passwords for sites”. Then click the Exceptions button beside that selection and make sure the sites you want to remember passwords are *not* listed.
Hope this helps!