According to a security advisory posted by Mozilla on Tuesday, the recently-released third update of Firefox 3 - Firefox 3.0.9 - patches as many as 12 security vulnerabilities, four of which can be termed 'critical'.
So far as general bugs are concerned, Firefox 3.0.9 - weighing 17.2 MB, and available for Mac OS X, Windows, and Linux - fixes problems such as long time taken to submit big forms; non-display of inline image attachments in webmail services, and the loss of cookies.