NoScript
Details
Description:
NoScript is the tool providing one of the best security you can get in a web browser - allow JavaScript, Java and other executable content to run only from sites you trust.
The NoScript Firefox extension provides extra protection for the Firefox, Flock, Seamonkey and others mozilla-based browsers: this free, open source add-on allows JavaScript, Java, Flash and other plugins to be executed only by trusted web sites of your choice (e.g. your online bank), and offers the most powerful Anti-XSS protection available in a browser.
NoScript's unique whitelist based pre-emptive script blocking approach prevents exploitation of security vulnerabilities (known and even not known yet!) with no loss of functionality.
You will be able to easily enable JavaScript, Java and plugin execution for sites you trust with a simple left-click on the NoScript status bar icon, or using the contextual menu, for easier operation in popup statusbar-less windows.
Features:
-Usable security - Operating NoScript is really simple. When you install NoScript, JavaScript, Java, Flash Silverlight and possibly other executable contents are blocked by default. You will be able to allow JavaScript/Java/... execution (scripts from now on) selectively, on the sites you trust. Notice that you shouldn't disable JavaScript and Java using Firefox settings, i.e. Tools|Options|Content|Enable JavaScript and Enable Java options have to be checked (JavaScript and Java enabled), otherwise JavaScript remains disabled everywhere even when allowed by NoScript. When you browse a site containing blocked scripts, a brief sound is optionally played and a notification, similar to those issued by popup blocker, is shown (Firefox only).
-Site matching - For each site you can decide to allow the exact address, or the exact domain, or a parent domain. If you enable a domain (e.g. mozilla.org), you're implicitly enabling all its subdomains (e.g. www.mozilla.org, addons.mozilla.org and so on) with every possible protocol (e.g. http and https). If you enable an address (protocol://host, e.g. http://www.mozilla.org, you're enabling its subdirectories (e.g. http://www.mozilla.org/firefox and http://www.mozilla.org/thunderbird), but not its domain ancestors nor its siblings, i.e. mozilla.org and addons.mozilla.org will not be automatically enabled. By default only the 2nd level (base) domain is shown (e.g. mozilla.org) is shown in the menus, but you can configure appearance to show full domains and full addresses as well.
-Java, Silverlight, Flash and other plugins - While its primary aim is preventing malicious JavaScript from running, NoScript can effectively block Java, Silverlight, Flash and other plugins on untrusted sites. Java Applets, Flash movies/applications, Quicktime clips, PDF documents and other content won't be even downloaded from sites where you consider them annoyances or dangers, saving your bandwidth and increasing your navigation speed. While in early NoScript versions only JavaScript and Java were blocked by default, this restriction has been extended to Flash and the other plugins, in order to prevent Flash-based XSS and other plugin-based attacks. Anyway you can configure the kinds of content you want to forbid using the NoScript Options|Plugins panel. The status bar tooltip and the message bar display the total count of detected plugin objects () next to the count. Keep in mind that some sites use Java applets, Silverlight embedded objects or Flash movies to deliver rich content and applications, hence if you meet some web page you need to use but you find some functionality is missing, consider the possibility that you're blocking some essential applet or movie.
- Untrusted blacklist - Some sites, especially those serving ads, can appear in your "Allow ..." menu more often than you like, making it too much long and noisy. If you know you don't want to allow a certain site now and in the foreseeable future, you can permanently mark it as untrusted: just click the NoScript icon, open the Untrusted menu and select the Mark bad-site.com as Untrusted menu item. NoScript won't even propose you to allow it again and your NoScript will be even more clean and usable. If you later change your mind, don't worry: just open the Untrusted menu again (on the same page), and you'll find the Allow bad-site.com command there.
-Anti-XSS protection - Cross-Site Scripting (XSS) vulnerabilities are usually programming errors made by web developers, which allow an attacker to inject his own malicious code from a certain site into a different site. They can be used, for instance, to steal your authentication credentials and, more in general, to impersonate you on the victim site (e.g. your online banking or your web mail). This kind of vulnerability, often overlooked, is very widespread and becoming highly popular among hackers: someone even bothered to write a JavaScript-based bot, called Jikto, turning your browser into a zombie which relentlessly sends automated XSS attacks all around. Of course this tool has been built "for research purpose", but its code unfortunately appears to be leaked in the wild, so anybody can take advantage of it, now...
NoScript features unique Anti-XSS counter-measures, even against XSS Type 1 attacks targeted to whitelisted sites. Whenever a non-trusted site tries to inject JavaScript code inside a trusted (whitelisted and JavaScript enabled) site, NoScript filters the malicious request neutralizing its dangerous load.
-Many more.
- 9 out of 10
Requirements:
-Firefox: 1.5 - 3.0b3pre
Downloadtube.com Editor Final Note:
NoScript is a powerful and reliable way to increase the protection level of your web surfing by blocking scripts and plugins from untrusted websites.
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