Firefox

AJAX is JavaScript based and JavaScript is usually used to add convenience and to pretty up web pages. Because sites had to work without JavaScript, usage was limited to extending the HTML or saving on the odd page request. Then came GMail. Suddenly we have lot’s of web developers “enhancing” the browser experience with behind the scenes XML fetching back to the original site. I cannot think of a worse collision of technologies than low level user interfaces with requests over the internet. The delays and failures of internet traffic...