That's kinda sad that you're just now discovering the power of session management. Opera has had sessions since 1996. Many other innovations that are now standard amongst most browsers (though some still require add-ons) were introduced by Opera as well, such as pop-up blocking, tabbed browsing, ad blocking, flash blocking, fast forward, mouse gestures, and speed dial. Opera also includes Email, IRC, and Bittorrent built-in. They just introduced Opera Unite which I like a lot, and Opera Turbo makes my shitty internet at work (384/384) feel quite snappy. I do wish there were a DownloadHelper add-on for Opera, but I just use FF when I need that function. As for Chrome, I wasn't impressed and uninstalled it less than 24hours after installing it. I've been using Opera as my primary browser since 2001, and I haven't been impressed by any other browser since then (though Konqueror had some nice features as well).