Article:"Mozilla Firefox Update Repairs Critical Memory Flaws"

Summary: According Sefanie Hoffman, Mozilla released new version Firefox 3.0.7 on Mar 4th with an upgrade. It was repaired 5 critical memory flows.
Mozilla's e-mail, Thunderbird and SeaMonkey were also repaired with the Firefox update.

I trust my mac that I update or download new systems when it shows to me to update new version of the system. After I read the article, I updated my Mozilla Firefox and I've learned that I should be more careful every time when I click something or even update.