It's because of the big table with styles, it takes ages to process it. Try some other browsers and you will get the same result (midori, konqueror, epiphany, seamonkey).
OK, assigning to the 'author'.
AFAIK, this page is generated by taskjuggler.
Thanks for report, it seems it was reported on old taskjuggler forum in March 2008 ( http://tinyurl.com/kpqqhd as archive for reference, old forum already removed ). Chris Schlaeger - upstream maintainer - said it's not planned to fix ugly html-ing for 2.X and it was already fixed in tj3 (which is still alpha, without graphical frontend and it is complete rewrite in ruby). I will check what could be done to fix this as this looks really ugly.
Funny thing is that in ancient 2.X Firefox it was rendered in ~30 secs. on my laptop. Rawhide 3.5 Firefox was trying to render it for ~10 minutes on more powerful desktop before we killed it. So even if this is ugly bad page, it looks like some kind of performance regression in firefox/gecko.
This bug appears to have been reported against 'rawhide' during the Fedora 12 development cycle.
Changing version to '12'.
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