Debian Security Advisory 1830-1 - Several remote vulnerabilities have been discovered in the Icedove mail client, an unbranded version of the Thunderbird mail client.
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Mandriva Linux Security Advisory 2009-083 - A number of security vulnerabilities have been discovered in previous versions, and corrected in the latest Mozilla Thunderbird program, version 2.0.0.21. This update provides the latest Thunderbird to correct these issues. Additionally, Mozilla Thunderbird released with Mandriva Linux 2009.0, when used with Enigmail extension on x86_64 architecture, would freeze whenever any Enigmail function was used. Also, when used on i586 architecture, Thunderbird would crash when sending an email, if a file with an unknown extension was attached to it. This update also fixes those issues.
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Debian Security Advisory 1751-1 - Several remote vulnerabilities have been discovered in Xulrunner, a runtime environment for XUL applications, such as the Iceweasel web browser.
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Mandriva Linux Security Advisory 2009-075 - Security vulnerabilities have been discovered and corrected in the latest Mozilla Firefox 3.x, version 3.0.7. This update provides the latest Mozilla Firefox 3.x to correct these issues. As Mozilla Firefox 2.x has been phased out, version 3.x is also being provided for Mandriva Linux 2008 Spring. Additionally some software has also been rebuilt against Mozilla Firefox 3.0.7 which should take care of upgrade problems.
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Ubuntu Security Notice USN-728-1 - Various vulnerabilities in Firefox have been addressed. The embedded libpng has been updated. Multiple flaws withing Firefox that could allow for denial of service or code execution have also been addressed.
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