Disregard this thread
Strangely, all clickable links and image resizing (click to see full image) seem to be broken in Minefield, the Firefox nightly testing builds. I'd imagine it's just xen sniffing the user agent and not detecting it as firefox for some reason, because Firefox 4 Beta 8 seems to work fine. Strangely, ajax calls and the dropdowns on the nav toolbar ARE working.
Here's the user agent for the version of Minefield where it isn't working:
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0b9pre) Gecko/20110106 Firefox/4.0b9pre
Here's a link that I'm not able to click using this version of Minefield: