New things:

No need for Traditional buttons: User has access to actions through
bubble buttons, instead of traditional buttons.These buttons can be
moved anywhere. They can be docked all at any side. In addition, Users
are allowed to hide all the buttons by using hotkeys.

No address bar visible: when clicked Web button, it opens a new pop
up. Where all the texts are auto selected, so
there is no any extra clicks needed comparing to usual browser.

No Visible Search bar: by default for the same sake as Address bar, so
start typing after clicking one button, where all texts in the search
bar are all auto selected. Get the search suggestions flowing up, when
buttons are docked to the bottom. In addition, suggestions for search
flow down for any other position of the search button.

View type of tabs:

     Bubble typed: Users can get to see the tabs from tabs bubble in
bubble shape or usual menu shaped, when tabs bubble is clicked.
Moreover, they can view the tabs in wordy type, which just shows the
name of the tab or can also  have thumbnail view type.

     Dockable Tab bars: If user thinks they want traditional wordy tab
bars or thumbnail typed tab bar, Users are allowed to have access in
that way. Users have the independence in selecting what they actually
need and they can place these bars docked
to any side they want.

     Unpinned style: Users can even move the tabs bubble to the title
bar, when they hover their mouse over the bubble they will get to see
tabs flow down from title bar. They can be of either wordy or
thumbnail view type.

Title Bar: To the left is notification side. In Notification side,
Users can see any
kind of notifications like popup, info about website and RSS feeds.
When a page loads or when mouse hovered over a link, Title bar
functions as a status bar, where users can see a green bar filling the
whole title bar and can see the URL respectively.

Link to the prototype: Feel free to view in HD to get complete feel of
the prototype
http://www.youtube.com/watch?v=cmrgDS0YRrA&feature=channel_page

Link to old design mock up:
https://labs.mozilla.com/forum/comments.php?DiscussionID=5117

Icons credit: Licensed under LGPL
http://www.kde-look.org/content/show.php/nuoveXT+2?content=62630

This work is licensed under a Creative Commons Attribution 3.0 United
States License and a Creative Commons Attribution 2.5 Canada License.