Mozilla has released the second maintenance release of Firefox 3. This is a recommended update for all users, as it fixes several security and stability related issues.

Of the security relates fixes, two are deemed critical and are related to a crash due to memory corruption and privilege escalation via XPCnativeWrapper pollution. Two moderate issues are related to resource: traversal vulnerabilities
and BOM characters stripped from JavaScript before execution.

Besides this there are minor layout fixes for several sites, theme fixes for right-to-left languages, new EV root certificates and more.

If you use Firefox you can easily update by selecting Help -> Check for Updates... if it's not displayed at start-up. You can also download the entire package from the Firefox download page.

Update: Only several days later Mozilla released Firefox 3.0.3 which contains one bug fix where users were unable to retrieve saved passwords or save new passwords.