In its default settings, NoScript will block javascript from any site unless it is expressly given permission. 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. Follow the steps below to add sites to the NoScript blacklist.

Difficulty: Easy

Time Required: 2 minutes

Here's How:

1. To begin, open Firefox and type "about:config" in the address bar (without the quotes).

1. You'll receive a Firefox prompt "This might void your warranty". Firefox is free and has no warranty. Ignore the erroneous warning by clicking the rather silly "I'll be careful, I promise" button. Now you can get down to business.
2. Scroll through the list until you find "noscript.untrusted".
3. Right click the "noscript.untrusted" line, select "Modify" from the right-click menu, and type in the domain name you want to blacklist. Don't add the http or www, just the domain name and suffix (for example, gumblar.cn). Separate multiple domain names with a space (i.e. gumblar.cn martuz.cn).
4. When finished entering domains, simply click OK and close the about:config browser window.