Pjol

There is a ability, iirc for extensions to use your Mozilla Sync account for storing settings. However it´s up to each extension developr to include this.

how are you watching YouTube without ads?

My way controversial (probably will be downvoted to oblivion) way is with Premium to support content creators i enjoy.

But to add something of substance to this discussion; My understanding is Brave Browser (despite WebKit) and AdGuard with Safari also removes ads.

Thanks for keeping the community updated and for all the work you put into maintaining it!