Mozilla released last update for Firefox 2, delivered new update for Firefox 3

Open source developer Mozilla has released the last version for Firefox 2.0 while delivering Firefox version 3.0.5 to encourage browser upgrades.

On their Firefox 2 download site, Mozilla posted this announcement:
Firefox 2.0.0.x will be maintained with security and stability updates until mid-December, 2008. All users are strongly encouraged to upgrade to Firefox 3.
Firefox 2.0.0.20 will be the last update. Somehow it is sad news to all users, me included, who have add-ons which are not compatible yet with version Firefox 3 installed. One of these is the Internet Download Manager (IDM) integration module. There is a workaround, however, which is to download with IDM in a manual way.

Here's how to update your Firefox 2.0.0.18 to version 2.0.0.20:
  1. Open Firefox;
  2. Go to 'Help' and click 'Check for updates';
  3. and then click 'Download & Install Now';
  4. Or simply go to this page and download the update.
To update Firefox 3, go to this page and download the corresponding file for your operating system.

Firefox 3.0.5 has eight security updates and the following:
  • Fixes for several stability issues.
  • Official releases for the Bengali, Esperanto, Galician, Hindi, and Latvian languages are now available.
  • Replaced the End-User License Agreement with a new "Know Your Rights" info bar on initial install.
  • When installing multiple signed XPIs simultaneously, previous versions of Firefox would fail.
  • Fixed several issues found in the accessibility implementation.
  • Added the ability to send OS-specific system notes in the crash reporter.