screenshotNo-Script Suite Lite  |  Download Block Scripts (and more) on Untrusted Websites.

Some of the important features of the No-Script Suite Lite addon are listed below. This is followed by an overview of this addon. This summary contains few words about the addon, its function, and its features. Next is FAQ, this section is useful to get information about how this addon works in your browser. If you couldn't find a specific answer, please fill the bug report form on this page or the contact form on the homepage to let us know about your question. Following the FAQ, is the bug report form. It is designed to collect user feedbacks and bugs about this addon. Users can suggest improvements or feature requests through this form too. The next section is for submitting comments about this addon which uses the Facebook comments plugin. The last section is dedicated to reports submitted through the GitHub website. We hope the information provided on this page, could help you get all the basics you need about this addon and enable you to have a better experience with No-Script Suite Lite.

In short, No-Script Suite Lite provides an extra security for your Browser (Firefox, Chrome, and Opera). It allows JavaScript (inline & external) to be executed only by trusted websites of your choice. Some websites are added to the white-list by default, but you can add or remove items at any time. Please check the YouTube tutorial below to get an idea of how this addon works in your browser. If you want to contribute to the developement of this addon, please fork it on GitHub, and push your changes to a named branch. Moreover, you can review all the comments made on GitHub commits.

7 Reasons to Use No-Script Suite Lite

  • Allows you to block all scripts (inline and external) from untrusted websites.

  • Simple and very lite: this addon does not use noticeable memory or CPU from your machine.

  • You can easily switch the extension ON or OFF from the toolbar popup UI.

  • Add or remove websites to the whitelist table easily from toolbar-popup.

  • Choose desired blocking engine, "Web-Request-Observer" or "Content-Security-Policy" (only for version 0.1.5).

  • Add desired whitelist or blacklist rules with Regular Expressions (only for version 0.1.5).

  • Available for all browsers (Chrome, Opera and Firefox) and platforms (Windows, Linux and Mac).

YouTube Tutorial

This video gives you an idea of how the extension works in your browser.

Matched Content


  • For the ultimate level of security from Firefox, Google Chrome and Opera, you should strongly consider getting a script blocking extension. There are a number of websites that will run scripts in the background as you are browsing the web or as soon as you visit a particular webpage. Rather than potentially having these scripts infect your computer with malicious materials or tracking cookies you can utilize the NoScript Suite Lite extension two produce a safe and trusted list of websites that can and can’t run scripts as you visit them. Blocking out these particular scripts from un-trusted websites can save your computer and improve your browser experience. NoScript Suite Lite addon has a number of basic features making it the perfect browser extension for blocking scripts. (a) Easy ON and OFF switch to improve your browser experience. (b) Easy add and remove URL feature with the help of a toolbar pop-up for new websites that you visit. (c) Whitelist access to help you set a mass number of favorite websites and edit sites that should not run scripts. (d) Mass compatibility with all browsers and platforms. (e) Optimized for minimal memory use. This extension does not draw a noticeable memory from your machine or draw on your CPU heavily. (f) Full block button; if you are experiencing issues you can block running all scripts from websites and blacklist on trusted websites.

    These days, browser security is a big issue for many companies and individuals. Using NoScript Suite Lite can be a quick additional security measure that could help to prevent a disaster in the future. White listing various sites as well as blocking malicious sites can really help you to maintain your computer, reduce the chances of threats and improve overall browser experience. Downloading and using NoScript Suite is simple for many different users and highly recommended for everyone. In order to add this Addon to your browser, simply scroll to the Bottom of this page and click on the desired Browser's icon to download the extension (you will be directed to the related addon store in order to download the addon). We do NOT host any extensions/addons/plugins in our website, all the download links will direct you to the related Firefox, Google Chrome, Opera and Safari Addon Stores.

Frequently Asked Questions

  • 1. What is No-Script Suite Lite?

    NoScript Suite Lite is a multi-browser addon that helps you control over Script contents and also other HTML elements such as Image, Object, Media and Style. You can easily block these items (inline and external) from your browsers toolbar popup UI. The Addon offers a handy set of functionalities to adjust the level of security in your browser. In toolbar panel UI, you can white-list a domain or website with just one click. Moreover, there are 5 HTML items, as mentioned above, to choose from in order to allow or block. Once you click on each item, the color turns to green which means it is activated. To adjust further settings, click on the options button from the toolbar panel UI, and a comprehensive options page will be open. From the settings page you have three adjustments at the top related to how the Addon works. The first settings is HTTP Observer blocking mode which uses Web Request Observer in your browser to block desired HTML contents. To read more about this method, please visit this Mozilla page. The same approach is available for Google Chrome and Opera browsers. The second option to adjust is the Content-Security-Policy (CSP) method, which adds a header with the same name to the response header delivered to the browser. If you want to get more information about this blocking method, please read this page in Mozilla. CSP method is stricter than Web Request and can block inline items easier and faster. However it is not very suitable if you want to block a single URL or item (by using RegExp rules described below). In the settings page there is also a section which lets you add custom rules with Regular Expressions. These rules can be white-list or black-list rules depending on your need. Moreover you can choose to block items originating from iFrames within a page or Top and all Frames in the page. Similarly, you can block only third-party URLs or All URLs related to a desired item (Script). Please read below FAQ items for more info.

  • 2. How do I add RegExp rules for this Addon?

    To write rules, as mentioned above, please open the options page and scroll down to see the Rules table As mentioned in the FAQ title this option is only available for the latest version of the addon (0.1.5). There are 4 columns available in the table. The first column is the HTML item selector (Script, Image, Style, Object and Media). The second column is the All or Third Party selector which is discussed in the above FAQ item. Third item is the TOP or iFrame selector. Please note Top means (Top + Frames), in other words if you select Top, all URLs originating from the Top domain and all frames are being monitored. Fourth and fifth columns are for adding regular expressions rules. Forth column is for the White-list rules and Fifth column is for Black-list ones. For these rules to work, you need to write them in Regular Expression format. Any URL that matches these rule(s) will be white-listed or black-listed. Note, please place or "|" operator between each rule and add as many rules as you need. For example the following rules will white-list all URLs in the format of "" or "":| Please note: when using these rules to block a content(s), it is better to disable Content-Security-Policy method and only work with HTTP Observers. This is because CSP will block items in group and does not allow a single URL or item to be blocked. A regular expression (regex or regexp for short) is a special text string for describing a search pattern. You can think of regular expressions as wild-cards on steroids. It is similar to wild-card notations such as *.txt to find all text files in a file manager. Please visit this Wikipedia page to get more info about Regular Expressions.

  • 3. How can I download the source code for No-Script Suite Lite?

    To download the source code for this extension from Chrome Web Store, it is recommended to use Extension Source Downloader. With this addon, you can download the source code as a ZIP or CRX format to your machine. If you want to download the source code from the Firefox addons store, please open the firefox download link (if available) in the Firefox browser and then right-click on the - Add to Firefox - button and select - Save Link As... - item. Choose the destination folder on your machine and then save the file in XPI format. You can then rename the XPI format to a RAR or ZIP file. Some extensions may have a GitHub repo address, which you can use to download the source code as well. But, it may not be the latest version of the addon. Therefore, downloading the source code from the official web stores is the best option as it always gives you the latest version of the addon.

  • 4. What is new in the latest version of NoScript Suite Lite?

    NoScript Suite Lite (v0.1.5) is thoroughly revised. It has a nice options page with plenty of settings and a new toolbar panel UI. It is released for all browsers and platforms and will soon be available to download or upgrade if you already have an older version.

  • 5. How to add/remove the toolbar button in Firefox?

    To add or remove the toolbar icon right-click on a free space in your Firefox toolbar and select "Customize...". Now you can drag and drop the button to a new position.

  • 6. How to access to the settings?

    To change NoScript Suite Lite settings, click on the toolbar button and open the panel. From the panel click on the settings icon at the top right corner. Alternatively, you can open the settings from the addons page in your browser.

  • 7. How to install the latest version of this extension in your Firefox?

    In order to install the latest version, head to Mozilla Store and click on "Add to Firefox" button. Please note, it may take a few days before you see the latest update in Firefox addon store (v0.1.5). Similarly, for Chrome and Opera please allow a few days before the latest version is published.

  • 8. How to Disable this addon in my browser?

    In order to disable this addon, there are few roots to follow. The first one is from the toolbar panel UI by clicking on the big icon at the bottom right corner. Once you click on this icon, the color turns to gray within the popup and the addons icon will change accordingly. The other method is from the browsers addon page where there is a disable button for each extension. You can click on this button to disable the Addon. But please note, following this method to disable the addon, some settings may be permanently erased such as the white-listed URLs in the toolbar panel UI. So the safest way to disable the addon is from the addons toolbar panel UI and by clicking on the disable button.

  • 9. How do I block (disallow scripts on) a website?

    In order to block a website, open the toolbar popup and find the website URL (if it is added) and delete it from the whitelist. If the whitelist does not contain the URL, the website is not allowed to load any scripts by default. Similar approach is valid for Image, Style, Object and Media elements.

  • 10. How do I unblock (allow scripts on) a website?

    To unblock a website, open the toolbar popup and add the URL to the whitelist by clicking on the plus (+) sign or hitting enter key. As mentioned above, follow a similar approach to unblock other contents such as Image, Style, Object and Media.

  • 11. Where can I find the privacy policy for No-Script Suite Lite?

    Please read the privacy policy for this extension here.


Reporting Bugs

Your feedback goes a long way towards making this addon even better. With this feedback and bug report form, you can report bugs or suggest features/enhancements for the functionality or performance of this addon. Please note that this form will be sent to the developer(s) of this addon. You will not get an immediate or personal response at the moment. However, the developer(s) may contact you through the email address provided in this form for further clarifications or to request additional information regarding the reported bug(s).

If you want to rate or write a review for this addon in the official webstore, please press the - Rate this addon - button below.

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Describe the step-by-step process required to reproduce the issue you are reporting. Be specific when describing these steps by providing as much detail as possible.

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Reviews | Discussions

Please note: keep these reviews/discussions clean, and avoid the usage of derogatory or inappropriate language or terminology in references to individuals or groups based on race, national or ethnic origin, color, religion, age, gender, etc. Do not submit bugs in your reviews, use the above bug-report section instead. Also, never post any personal information in these reviews.