A few questions

Mozilla Firefox seems to have some Proprietary Libraries, does this affect forks? What do the dev's of librewolf generally think about Proprietary Libraries in firefox, is that a reason for concern?

May i also ask about the connections librewolf makes as soon the browser is opened? I have no doubt the librewolf dev's have taken all necessary steps to ensure the browser is a private as possible. Just want to understand what these connection do exactly and if i was to block them, what would be the outcome? Potentialy issues? shavar.services.mozilla.com push.services.mozilla.com ocsp.digicert.com r3.o.lencr.org push.services.mozilla.com

PS: on https://privacytests.org/ i saw that brave and tor both block "blob tracking" while librewolf doesn't, i don't really understand what this even is, but would it make sense to block that in future librewolf versions?