This may be my happy medium between the speed of google chrome and the functionality of FF. It's built on the Mozilla architecture so all my addons work but it loads and scrolls faster. It has a focus on social networking so has a lot of handy related functionality.
I also subscribe to a lot of feeds and it's been hard finding a decent reader, Flock has a built in reader that is as good as my FF add on but doesn't have the flash related buggieness.
Flock