Just tried Firefox 4 (Minefield) on my Kubuntu box and I must say, it is THE fastestĀ browser I have ever used. Plus the interface is quite impressive as well.

Firefox 4
The integration with KDE was easy. Just download this theme (it is compatible with FF 4.0).
You might also want to use a KDE-ish file picker. To do that, type about:config in your address bar, and search for file_picker. Set ui.allow_platform_file_picker to false.
Viola! You’re done.







