Firefox 1.5.0.3 is a security fix from mozilla (see http://www.mozilla.com/firefox/releases/1.5.0.3.html)
From that page you see :-
Firefox 1.5.0.3 is a security update that is part of our ongoing program to provide a safe Internet experience for our
customers. We recommend that all users upgrade to this latest version.
* Security fix for denial of service vulnerability. (see http://www.mozilla.org/security/announce/2006/mfsa2006-30.html)
Release Date: May 2, 2006
Inline with its goals, the Fedora Project does not provide backports and so they released 1.5.0.3 as a security update. They did not put a message on Fedora-announce as they did with 1.5.0.2 in April. But you can see the announcement at :- http://lwn.net/Articles/183435/
Update Information:
A bug was found in the way Firefox handles iframe.contentWindow.focus() calls. A malicious web page could potentially execute arbitrary code as the user running firefox.
Users of Firefox are advised to update to this package, which contains a version of Firefox not vulnerable to this issue.
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