Firefox 4 alert boxes
I mentioned on Twitter that I’m impressed so far with Firefox 4. Here’s a very minor, change I’ve noticed, that I’m a fan of; the treatment of javascript terminal dialogs.

The overlay makes it clear to the user that they need to interact with the alert box before they can use the page. Much nicer than the old style, where the page remained unaltered and the alert dropped from the top (at least on a Mac, I understand Windows versions appeared mid-screen).

There’s still some room for improvement here, and I don’t think this style of modal will (or even should) replace current solutions for modal windows, but I like how the Mozilla team is working to draw more attention to the box.
That said, I hope the Firefox team doesn’t give in to the inevitable cries from either the “we hate any and all change” camp, or the “now I want to use an image as the overlay and control the opacity” camp.

Erik wrote on
In my opinion the biggest improvement of the modal prompt is that it no longer blocks the entire browser, but only the tab where it is active. No more force quitting the browser because of some annoying loop of alert boxes, simply close the tab and be done with it!