Safari was also buggy for me for some of our service web pages like Ambari - for some reason Safari took 1 core to 100% and internet stopped working everywhere.

Safari was also buggy for me for some of our service web pages like Ambari - for some reason Safari took 1 core to 100% and internet stopped working everywhere. Only solution was to kill the process. With Firefox, everything seems to be working perfectly (albeit Youtube loads slower). I also find the redesign delightful and visually appealing.