Never change a winning team

I´ve used jot.com as my personal wiki for quite a long time, and working on it with firefox on my mac never seemed to be a problem – until two weeks ago I updated to the new version, and suddenly I couldnt´t use the WYSIWYG features of jot anymore – strange thing. Now, when I use my dirty old OSX-mozilla browser, jot still works perfect. never change a winning team….