Beta 3 of firefox 3 was released today, and a exciting new look was introduced. The toolbar is very clean! Yet futuristic and appealing.

  My other favorite news in firefox 3 (but not necessarily introduced in beta 3)

• Slim menu bar (means more browsing space)
  
• Improved (rewritten) bookmark system which is integrated with rss subscriptions
• Faster loading
• The drop down of the address bar contains title and description of the page, very nice too!