Dos Firefox 5.

Publicated on : 1179490098
Today I found another Dos exploit for Firefox that causes a denial of service. It only works locally and could possibly be lead to executing malicious code on the client. The payload I use is very simple: "file://///;<h1>0x000000</h1>"

I'm not sure why this happens, it only works when HTML is opened and closed. The payload below won't work, but give you also strange behavior:
file://///;<script>Javascript doesn't work here!
The Dos exploit: