NoScript
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NoScript extension icon and main menu
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| Developer(s) | Giorgio Maone |
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| Stable release | 2.9.5.3 (January 17, 2017) |
| Preview release |
2.9.5.2rc5 (November 28, 2016) 3.5a14 (August 3, 2016) |
| Repository | no%20value |
| Written in | JavaScript, XUL, CSS |
| Available in | 45 languages |
| Type | Mozilla extension |
| License | GPLv2+ |
| Website | NoScript |
2.9.5.2rc5 (November 28, 2016)
NoScript (or NoScript Security Suite) is a free software extension for Mozilla Firefox, SeaMonkey, and other Mozilla-based web browsers, created and actively maintained by Giorgio Maone, an Italian software developer and member of the Mozilla Security Group. NoScript allows executable web content such as JavaScript, Java, Flash, Silverlight, and other plugins only if the site hosting is considered trusted by its user and has been previously added to a whitelist. NoScript also offers specific countermeasures against security exploits.
NoScript blocks JavaScript, Java, Flash, Silverlight, and other "active" content by default in Firefox. This is based on the assumption that malicious websites can use these technologies in harmful ways. Users can allow active content to execute on trusted websites, by giving explicit permission, on a temporary or a more permanent basis. If "Temporarily allow" is selected, then scripts are enabled for that site until the browser session is closed.
Because many web browser attacks require scripting, configuring the browser to have scripting disabled by default reduces the chances of exploitation. Blocking plug-in content, as well, helps to mitigate any vulnerabilities in plug-in technologies, such as Java, Flash, Acrobat, and so on. NoScript will replace these blocked elements with a placeholder icon. Clicking on this icon enables the element.
NoScript takes the form of a toolbar icon or status bar icon in Firefox. It displays on every website to denote whether NoScript has either blocked, allowed, or partially allowed scripts to run on the web page being viewed. Clicking or hovering (since version 2.0.3rc1) the mouse cursor on the NoScript icon gives the user the option to allow or forbid the script's processing.
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