[dsr_]

Not running JS is, unfortunately, a death sentence. Too many sites legitimately depend on it.

On the other hand, you could reasonably require a user to turn JS on for each site that needed it.

On the gripping hand, users would complain, or automatically turn it on for every site, or both.

[mike47]

Do you mean that many (most?) online banking sites use JS? Based on my bank's online system, I don't think there is anything that could not be done without scripts. And my suggestion (perhaps not well expressed) is that someone (e.g. the banks themselves) develop a cut-down extra secure browser for use exclusively with online banking websites. I am assuming that the majority of online banking is done from customers' own home computer or tablet; obviously this idea won't help people logging on via a shared public PC.