Being a long term firefox user, yesterday i tried out chrome for my first time. As some people said, "it has extensions now" - they were there already when i started using it. What a good suprise.
I gotta admit that i really like it, the interface and all that. Hell, even youtube videos buffer faster (Around ~15000kbps, while firefox was ~8000kbps). Flash version is slightly newer on Chrome but i dont think that will make such a big difference. The extensions work fine, loving the Adblock and several other extensions wich ive used on Firefox. Only thing i miss is BarTab - i hope there will be one available soon. For now ive checked Chrome as my default browser and firefox will most likely be uninstalled.
Edit: I disagree with u Majod, bigtime. While firefox (Version 4.0) used around 400mb+ with 9 tabs - chrome uses less than half of that. Overall, chrome is just so much faster. Im also loving the instant startup. This thing is epic fast.