Here are the more notable features:
Firefox 3.6 is built on Mozilla's Gecko 1.9.2 web rendering platform, which has been under development since early 2009 and contains many improvements for web developers, add-on developers, and users. This version is also faster and more responsive than previous versions and has been optimized to run on small device operating systems such as Maemo.
Notable Firefox 3.6 features include:
* Available in more than 70 languages - get your local version.
* Support for a new type of theme called Personas, which allow users to change Firefox's appearance with a single click.
* Protection from out-of-date plugins to keep users safer as they browse.
* Open, native video can now be displayed full screen and supports poster frames.
* Improved JavaScript performance, overall browser responsiveness, and startup time.
* The ability for web developers to indicate that scripts should run asynchronously to speed up page load times.
* Continued support for downloadable web fonts using the new WOFF font format.
* Support for new CSS attributes such as gradients, background sizing, and pointer events.
* Support for new DOM and HTML5 specifications including the Drag & Drop API and the File API, which allow for more interactive web pages.
* Changes to how third-party software can integrate with Firefox in order to prevent crashes.
They may have improved stability, but you'll have to browse their website later to be sure.. or just test it out for a while...
Edit: Here's an article that talks about Firefox 3.6's improved speed, stability, & more...
http://venturebeat.com/2010/01/21/mozilla-firefox-3-6/ (http://venturebeat.com/2010/01/21/mozilla-firefox-3-6/)
Firefox 3.6.2 released!
Release Notes:
* Fixed a critical security issue that could potentially allow remote code execution (see bug 552216).
* Fixed several additional security issues.
* Fixed several stability issues.
I haven't been keeping up to date with this topic, but unfortunately they take forever to update Firefox... which is a good thing, I guess... lol...
Well... Firefox 3.6.4 update has been released! Update yours now!
Also, the next one will be a whole new version.. and they're talking about releasing that in like July or August hopefully... so.. yeah... :)
RELEASE NOTES:
Firefox 3.6.4 provides uninterrupted browsing for Windows and Linux users when there is a crash in the Adobe Flash, Apple Quicktime or Microsoft Silverlight plugins.
If a plugin crashes or freezes, it will not affect the rest of Firefox. You will be able to reload the page to restart the plugin and try again.
Firefox 3.6.4 also fixes the following issues found in previous versions of Firefox 3.6:
* Fixed several security issues.
* Fixed several stability issues.
Firefox 3.6.7 released!
Firefox 3.6.7 fixes the following issues found in previous versions of Firefox 3.6:
* Fixed several security issues.
* Fixed several stability issues.