|Browser||Out of the box||Optimized|
|* IE + Windows Live Toolbar|
As it can be noted, Opera provides the best out of the box experience. Yet, neither Opera nor Internet Explorer are customizable enough - not even using third party extensions. Microsoft earlier this year released MSN Toolbar that significantly enhances old versions of Internet Explorer for the modern requirements of a web browser. Firefox on the other hand provides a bare minimum of what a person expects in a modern web browser while giving the user a large collection of addons which enables the user to tweak it to their specific needs, hence I rate it as the best browser after optimization.
Microsoft should be applauded that its newest browser Internet Explorer 7 qualifies the minimum expectations for a modern web browser, and in fact competes with the out of the box experience of Firefox 1.5. It is advised that all windows users upgrade their Internet Explorer to version 7 - even if they use an alternative browser. As a final advise for Firefox users who are concerned about security, it is advised to install the noscript addon.
PS: Figures provided are based on my subjective experience with the products
Update: Firefox 2.0 final has been released