Most changes in Firefox 6 are "under the hood" and not visible to users. The first 2 on the following are visible changes. Click "What's New in Firefox" on this page: https://www.mozilla.com/en-US/firefox/6.0/releasenotes/ One security vulnerability: *https://www.mozilla.org/security/known-vulnerabilities/firefox.html#firefox6 *https://www.mozilla.org/security/announce/2011/mfsa2011-29.html '''If this reply solves your problem, please click "Solved It" next to this reply when <u>signed-in</u> to the forum.'''

One thing that you might want to change in FF 6 is the greying-out of most of the URL in the address bar. user_pref("browser.urlbar.formatting.enabled", false);