Browsers are like your Windows in a closed house, through which your computer interacts with the outside world. That’s why, web browsers are the cause of most of malware infections acquired by your computer. It is absolutely important to use the best browser security tools.

JavaScripts – A Necessary Evil

JavaScript is a necessary evil. In today’s world it is used by most of the websites to display steamy content and the absence of it from your website will take the fun part outside your web browsing experience. Similar is the case with Flash components.

Having said that, it is also true that JavaScripts are also one of the biggest tools, through which malware get sneaked in your computer. Malware developers use them to execute malicious codes into your web browser and get their jobs done.

It is true that the constant development process of web browsers ensure that vulnerabilities and security holes get plugged as and when they get noticed. But there is always a lag in plugging of the security hole and detection of the vulnerability by the malware developer. And this lag is often the cause of the infections.

And if you take the security of your web browser seriously, then the best option for you is to not allow the vulnerabilities to get exploited at the first place. That is do not allow the malicious scripts to be run on your web browser.

NoScript – The Best Firefox Security Addon

block javascriptsNoScript is a firefox security addon, which works like a strict school master. It allows JavaScript, Java and other executable content to run only from trusted domains of your choice, e.g. your home-banking web site, guarding your “trust boundaries” against cross-site scripting attacks (XSS) and Clickjacking attempts, thanks to its unique ClearClick technology. Firefox NoScript Security Addon uses a preemptive approach prevents exploitation of security vulnerabilities (known and even unknown!)

Whitelisting option is available to the users of NoScript. This allows you to whitelist the domains of your choice and NoScript will allow the Active components from these domain websites to be run on your web browser.

noscript options

Criticism of NoScript

NoScript may prevent a large number of sites from working due to their reliance on JavaScript technologies such as Ajax. Inexperienced users may find this behavior overkill, unnecessary, or tedious despite the additional security.

Essentially it is a trade-off between the user experience and the browser security. And you have to decide the case yourself.

But we will suggest that you should try your hand at NoScript. You can start using NoScript and if you find it too annoying, then you can allow the javascript to run globally for all websites. In such a case you will stand vulnerable against javascript threats but at least you will still be protected against PC Security threats like anti-XSS filters, anti-clickjacking technology, and JSON hijacking protection.

Here is a nice YouTube video showing how to download and use NoScript.

[Download NoScript]