SOURCE: Mozilla
Firefox 3 is going to provide a wide range of improvements to
performance, stability, and
security, and it?s also going to present several new user facing features. Here is a quick recap of design work that?s been going on in the Mozilla community over the past few weeks for Firefox 3, along with information about how you can help contribute, by providing feedback on these designs, or
creating your own UI mockups.
In case you are wondering how Mozilla decides on which features to include in Firefox,
we believe in ?Delivering the right set of features - not too many or too few. (The goal is to create a useful browser, not a minimal browser.)? We are only interested in adding features that are universally useful, and have no impact on performance. For previous releases of Firefox we added features like RSS detection, spell checking and session restore. Here are some of the user facing features we are considering for Firefox 3.
Standard Mockup Disclaimer
All of these images are only conceptual mockups of Gran Paradiso, any particular feature may end up looking entirely different, or may not even make it into the final release. On a lot of these features we are iterating very quickly on the UI design, so even the mockups posted here may already be old.
User Facing Features in Firefox 3
Places: Bookmarking, Tagging and History -
more information
Places is our new infrastructure for storing bookmarks, history, and other information about Web pages. We are working on interfaces that allow users to quickly bookmark pages:

Tag pages:
Read the full story here