Firefox just doesn't seem to like this box very much. The upgrade wound up producing this ever-so-cute effect where dialogs show up as error messages, and clicking on "ok" to the error message clicks okay in the original dialog... not ideal for security warnings! That's happened before (bug report dutifully filed), but now even the menus are failing to render... which means most of my bookmarks are inaccessible... especially missed is the open-all-in-tabs for the morning comics... I'm cranky without my comics.
No time to fix it today, not like I'll be using Firefox on this box for a week anyway... still... annoying.