Photos

* The photobar now allows you to mark photostreams as your favorite and find out when they have new photos
* Photo uploading now supports multiple operations such as cropping, rotating

Search

* Search now includes live web results
* Fixed a few performance and accuracy problems.

My News

* New feature: My News allows you to subscribe to RSS feeds, be notified when they have new articles, and read them quickly, including saving them for later.

Blogging/Web Snippets

* The blog editor now uses the native Mozilla editor, and has better support for various blog platforms.

Favorites

* The Star button also allows you to mark photostreams as favorites and add RSS feeds to your news.
* We made multiple performance improvements in Favorites sharing/syncing.
* The default sharing mode is "share with my other computers".

General

* Numerous performance and stability improvements.
* New browser theme