I don't know if you mean something special with "E-legitimation/BankID", but I do quite a lot of bank transactions (all of them) and purchases on-line, with Opera all right. It's only HTTPS.
NoScript-like functionality is also included in Opera, and much more, just press F12.
got question. other than "security" reason, what makes you think we should switch to opera? is it faster? lighter? anything?
Safer, faster. Can be used as email, chat client, news, feed reader, can download torrents, and yet it's much lighter than any one of the other many programs that you'd need to do all that. In short it's your Internet in a box, streamlined.
Hehe, Opera is winning here in Geekland, although it's completely unknown in mainstream and the media never talk about it, even when they talk about Firefox all the time, and Safari, and Google's beta browser...