I tried Chrome.
I didn’t care for it. It didn’t have enough tweaking options.
And I didn’t like that it kept a list of all the sites visited on the main screen.
What make FF great are the add-ons. Everything from ad blockers to custom scripts that redesign websites on the fly . I use Chrome mainly for accessing my web crm tool because of the speed but if FF 3.5 is faster it may become my exclusive browser.