Firefox 1.x users should upgrade for improved security and some new functions.  I use Firefox as a complementary browser to IE 7.  With excellent improvements to Internet Explorer and Firefox during October, users should move to these new technologies for improved security and functionality. 

The links below provide information related to this new release:

Firefox 2 Review
http://mozillalinks.org/wp/2006/10/firefox-2-review/

Firefox 2 - Release Notes
http://www.mozilla.com/en-US/firefox/2.0/releasenotes/

Firefox 2 - Home Page and Download site
http://www.mozilla.com/en-US/firefox/