Mozilla Firefox 4.0 released
New 4.0 release has just debuted and it is working well in testing as a complementary browser
Firefox 4.0 - Home Page
http://www.mozilla.com/en-US/products/download.html?product=firefox-4.0
Firefox 4.0 - Whats New
http://www.mozilla.com/en-US/firefox/features/
Firefox 4.0 - Tips and techniques
http://www.mozilla.com/en-US/firefox/tips/
Firefox 4.0 - Security
http://www.mozilla.com/en-US/firefox/features/#advancedsecurity