Mozilla has released a new version of its Firefox software designed to fix several stability bugs in the browser engine, some of which showed evidence of memory corruption and could potentially be exploited to run arbitrary code. Of the nine flaws fixed in Firefox 3.0.11, four were rated critical, one high, two moderate and two low in Mozilla’s four-step system.
In addition to the security fixes, the Firefox developers updated the version of SQLite used within the browser to remove errors that could destroy the bookmark database. As usual, the update will be pushed directly to Firefox users. You can also get Firefox 3.0.11 here
and read the detailed security notices at Mozilla’s website