Multiple Mozilla products contain a flaw that is triggered when the applications fails to properly handle requests to navigate away from pages that contain menus that have <select> elements active. This may allow a context-dependent attacker to perform a clickjacking attack via the Geolocation API or an XPI file.
Loss of Integrity
Upgrade Firefox and Thunderbird to version 16 or higher and SeaMonkey to version 2.13 or higher, as they have been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.
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