Mozilla has released an update to the Firefox 3.0.x branch, which as usual, includes a bunch of stability bug fixes, and most notably fixes for five critical security vulnerabilities you may want to tackle now.
Some other annoying bugs have been resolved, from the release notes:
- Fixed an issue introduced in Firefox 3.0.11, where Firefox would occasionally freeze when accessing the Java plug-in on Windows XP. (bug 498132)
- Fixed an issue introduced in Firefox 3.0.11, where Firefox would not save data properly when a user stored their home directory on a remote location using AFP. (bug 497792)
- On Mac OS X, fixed an issue where certain AppleScripts failed to return the proper information. (bug 427448)
If you are still on the Firefox 3.0.x branch, you will be prompted for the updated within the next 48 hours, or you can manually do it selecting Check for Updates… in the Help menu.
You may also want to consider jumping to Firefox 3.5.1 now. According to Mozilla support policies, updates will be provided until January 2010.