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Mozilla Foundation Security Advisory 2005-10

javascript: links in Thunderbird launch Internet Explorer

Announced
January 21, 2005
Reporter
Tom Braun
Impact
Moderate to Critical
Products
Thunderbird
Fixed in
  • Thunderbird 0.9

Description

Clicking on javascript: links in Thunderbird launched the default handler for that scheme registered with the OS. On the Windows operating system Internet Explorer is the default handler for the javascript: scheme even when Firefox is the default browser.

The risk associated with this depends on vulnerabilities in the installed version of Internet Explorer.

Workaround

Upgrade to the fixed version

References

https://bugzilla.mozilla.org/show_bug.cgi?id=263546