Mozilla has released a new security update for its Firefox browser. With the upgrade to version 3.6.13 some security loopholes are closed, the majority of which is rated critical. In addition, Thunderbird also updated and the SeaMonkey browser suite. The update addresses a total of eleven vulnerabilities in Firefox. Nine of them are rated critical - attackers to inject and execute them so be exploited by malicious code. Furthermore, the update will also improve the stability and increase performance. New features are not added.

The new Firefox version 3.6.13 is now available for various language versions of the operating systems Windows, MacOS X and Linux for free download in. For Firefox 3.5 is an update to version 3.5.16 available. Users of the browser will receive within the next 24 to 48 hours an automatic update notification. Alternatively, the update manually trigger it.

In Thunderbird with the update, three critical vulnerabilities are closed. All three can be exploited by attackers to inject and execute malicious code and. In addition, were also removed some bugs that could lead to crashes. In the new Thunderbird version 3.1.7 should also have been improved handling of large e-mail directories, and stored locally with IMAP mailboxes.

Thunderbird 3.1.7 is now Windows, MacOS X and Linux ready for download. For Thunderbird 3.0, there is an update to version 3.0.11. Moreover, as the SeaMonkey 2.0.11 is available in which the same vulnerabilities are eliminated as in Firefox. As usual, Mozilla recommends that for security and stability reasons, if possible, always use the latest version of the program should be used. The updates are now the update feature of the programs distributed.