I agree, Linux on the desktop is far from dead. I know several people who use Linux on a day to day basis. At home, at work, etc. I'm not quite there yet, but I do have Arch Linux on my laptop dual-booted with Windows 7. My goal, which I want to achieve within the next few years, is to use Linux as close to 100% of the time as possible. I want to make it my primary OS on the desktop, on the laptop, everywhere.

I use Firefox because for me, it's extremely stable and secure. Until Chrome can support plugins that do the exact things as addons like NoScript, CookieSafe, AdBlock, etc, I can't see myself ever using Chrome as my primary browser. On the other hand, it'd be awesome if Mozilla could add sandboxing and tabs in separate processes to firefox to make an already secure and stable browser that much more secure and stable.