[JonathonW]

> If they don't read, then they wouldn't be using Firefox, since all web pages (barring a few exceptions) would be gibberish to them :)

Not can't read; don't read. See http://blog.codinghorror.com/teaching-users-to-read/, http://www.joelonsoftware.com/uibook/chapters/fog0000000062....

Users don't read material that's put in front of them. Modal dialogs get dismissed without reading, non-modal dialogs (Firefox's doorhangers, Chrome/IE's notification bars) get ignored completely or dismissed.

[derefr]

In this case, though, the resulting page without Javascript would probably be entirely empty. Maybe Firefox could detect that and throw up a full-page-error kind of thing (like e.g. an SSL cert-failure error page) rather than a dialog. "There's nothing here. We detect <script> tags on the page, so you probably need to [enable Javascript]. Don't do this if you don't trust the site, though—you disabled Javascript for a reason!"

Basically, a heuristic browser-chrome view in place of what used to be a site-author's <noscript> view.