Enterprise Applications: Mozilla's Firefox 4 Web Browser Gets an Overhaul, Inside and Out
Mozillas Firefox 4 Web Browser Gets an Overhaul, Inside and Out
by eWEEK Labs

Tabs on Top
Tabs are now on top by default. For now, the change is visible on Windows builds only, with new themes for OSX and Linux to come soon.

The Firefox Button
On Windows Vista and Windows 7, the menu bar has been replaced with a Firefox button that reminds us of the button to reach Office 2010's "backstage area."

Smart Location Bar
You can search for and switch to already open tabs in the Smart Location Bar.

New Add-ons Manager
Firefox 4 sports a new Add-ons Manager and extension management API.

Reload and Close
The stop and reload buttons in Firefox 4 have been merged into a single button on Windows, Mac and Linux.

Bookmarks Button
The Firefox Bookmarks Toolbar has been replaced with a Bookmarks Button by default.

Crash Protection
Firefox 4 protects browser sessions from certain crashes by segregating browser plug-ins into separate processes.

WebM
Firefox 4 also includes native support for the HD HTML5 WebM video format.

