Dear AJAX, Stop That

I want my browser's STOP button back!

Or maybe I should be directing this complaint at my browser? Hey Firefox, why can't the STOP button stop AJAX requests?

Or maybe I should just stop using Google Reader for my homepage. Hey Google, enough already with the "our web page is really a web application" business. I'm damn sick of having to make sure that the Google Reader page loads up before trying a search in Firefox. If I don't wait then Reader hijacks the browser when it finally gets its results back from AJAXville, which can take up to half a minute at times.