Mozilla Put Older & Vulnerable Versions of Java Into Firefox Blocklist

Mozilla Put Older & Vulnerable Versions of Java Into Firefox Blocklist

In the official blog post Mozilla confirmed that they have blacklisted unpatched versions of the Java plug-in from Firefox on Windows in order to protect its users from attacks that exploit known vulnerabilities in those versions. "The February 2012 update to the Java Development Kit (JDK) and Java Runtime Environment (JRE) included a patch to correct a critical vulnerability that can permit the loading of arbitrary code on an end-user’s computer. This vulnerability—present in the older versions of the JDK and JRE—is actively being exploited, and is a potential risk to users. To mitigate this risk, we have added affected versions of the Java plugin for Windows (Version 6 Update 30 and below as well as Version 7 Update 2 and below) to Firefox’s blocklist. A blocklist entry for the Java plugin on OS X may be added at a future date. Mozilla strongly encourages anyone who requires the JDK and JRE to update to the current version as soon as possible on all platforms. Affected versions of the Java plugin will be disabled unless a user makes an explicit choice to keep it enabled at the time they are notified of the block being applied."- Said Mozilla
Unlike Google's Chrome browser, which has a feature specifically aimed at disabling outdated plug-ins, Firefox relies on Mozilla developers deciding which plug-ins pose a risk to users. However, users retain the choice of preventing those plug-ins from being disabled. The Firefox blocklist has rarely been used to disable plug-ins from big software vendors like Oracle, but precedents do exist. In October 2009, Mozilla decided to add Microsoft's Windows Presentation Foundation (WPF) plug-in to the Firefox blocklist after Microsoft revealed that it had a vulnerability.


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