In a sure step forward,Mozilla has released Beta 4 of the Firefox 3 browser. This new beta introduces over 900 bug-fixes over earlier versions and aims to improve performance and memory usage on all the platforms that the browser is aimed at.
Apart from this it also features minor cosmetic changes, which are based on the UI the browser is running. All these changes have been made based on community feedback.
For further details and changes, check out this excellent post here and this status review here.


