You can block notification from any site on Chrome, Settings > Content Settings > Popup or Notification..i tried palemoon and I wasn't happy with ít performance. It still feels slow and sluggish
I don't feel comfortable using after many of using chrome
facebook notification. When I receive a message chrome will popup a noti. With firefox, I have to open facebook to check manually
with the same extensions, chrome runs much faster than firefox 55, 56
firefox 57 is on par with chrome or maybe a bit smoother but the extension support is lacking.