Email Battles posted a story on the Firefox 1.5.0.3 patch

The Firefox 1.5.0.3 patch blocks an open hole for attackers while further stabilizing Javascript. That will make a lot of Firefox power users happy. But a Firefox contributor reports that the new patch still doesn't completely solve the issue that stimulated his bug report. Even so, developers say the vulnerability no longer exists. And when you stack up Firefox security flaws against Internet Explorer, Opera and Safari, Firefox looks pretty good.

"Critical" Firefox Update Hits Mark... Almost