cold start launch time is way too long with many extensions loading at the same time, but yeah new launches on a same session doesn't take more than 5 seconds, but that's still too much. I've been a Firefox freak for years now, and I'm slowly switching to Chrome, for both application start and browsing speed. Chrome's just amazing. I refused to use it for a while because of its current lack of extensions (there are some, but nothing worth yet), and I use many in FF, but the difference of speed when browsing is such that I use Chrome more and more now. Browsing the web with it is sometimes as fast as browsing files in Windows Explorer.