An add-on that allows JavaScript and Java execution only for trusted domains of your choice
NoScript is an extension for Mozilla Firefox, designed to prevent JavaScript and Flash scripts from being executed by your browser. This tool can bring extra protection to your browser by blocking clickjacking and other potential threats.

You are not bothered by warning messages since the extension works in the background and stops the scripts that can be dangerous for your computer. You can configure the extension to display a short report with the blocked scripts in the add-on toolbar. If you would like to be notified when a script is blocked you can enable the audio feed back.

You can select the websites you do not want to be affected by restrictions by adding them to a whitelist. It is a very easy to import a list of domains from a text file and you can also export the list if you want to backup the information. You can choose to revoke all privileges if you want to be notified about all blocked items.

You can select the types of scripts that should be allowed or blocked from the Options window. If you are on a webpage and there are some important functions disabled by the extension, you can unblock the script temporarily with just a few clicks.

Some restrictions, such as blocking incoming objects, can be applied even to domains on the white list. If you have doubts about a certain website it can be marked as untrusted and subjected to additional restrictions.

Advanced users can limit untrusted websites in order to increase the extension's efficiency. You can use this section to create Anti-XSS (cross-site scripting) protection exceptions or to use external filters to check the webpage.

Overall, the extension is a very useful tool that allows you to browse the Internet with less interference from malicious scripts.

Reviewed by on April 2nd, 2012

last updated on:
September 29th, 2014, 6:27 GMT
file size:
528 KB
developed by:
Giorgio Maone
license type:
operating system(s):
Windows XP / Vista / Vista 64 bit / 7 / 7 64 bit / 8 / 8 64 bit / 2003 / 2008
C: \ Internet \ Internet Applications Addons \ Mozilla Extensions
download hub:
Block Flash ( + 1 other )


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12 Screenshots
NoScript - NoScript will provide users with an add-on that allows JavaScript and Java execution only for trusted domains of your choiceNoScript - The Options window will allow users to fully-customize the extension to match their preferencesNoScript - Users will be able to manage a Whitelist and even revoke temporary permissions as well as import and export itNoScriptNoScriptNoScriptNoScriptNoScriptNoScriptNoScriptNoScriptNoScript
What's New in version RC 1
  • Protection against some exfiltration attacks based on arithmetic operators
read full changelog

Application description

NoScript provides extra protection for your Mozilla/Firefox or Flock browser: this extension allows JavaScript and Jav...

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