Whoa, Firefox starts up instantly for me. I have about 3-4 extensions.
Opera is the slower one, about 3-5 seconds, with about a year's worth of history and auto-complete URL data that slows it down. Purging that gives it instant startup, but I don't see why I need to do that. :P
Baka. Soku. Zan. - The justice behind the dysORDer.