I just noticed that Firefox 3.6b1 (mac) is incompatible with the
mozrunner used by windmill 1.3 as the application binary inside the
firefox bundle has been renamed and is now known as "firefox-bin".
Patching the mozrunner by hand to change this path was successfull for
me, but I guess this is something you guys want fixed in windmill before
firefox 3.6 mac comes out.
Regards,
Martin