I just block all of facebook's named servers using ublock matrix these days. I used to use noscript for my web protection, but ublock matrix allows me to even block other things all the way down to images and the raw html coming from different servers, so in this instance I can not only block facebooks advertising and tracking scripts, I can block all connections to them.
Regarding the pyra's logo lights, IIRC at present they just blink fairly randomly. Even if they did become notification, I think if you look at the lid and just the right angle they're just exposed LEDs and they only happen to have the effect of backlighting the logo from certain (most) angles.