Earlier quoted context omitted.
uMatrix is fully-functional on Nightly. Using Firefox Add-Ons on a "smartphone" sucks because one has to access every Add-On interface via an Extensions menu. In that sense _all_ Add-Ons are only semi-functional. I use multiple layers: uMatrix + NetGuard + Nebulo "DNS Rules", at the least. Thus I have at least three opportunities where I can block lookups for and requests to Google domains.
Doesn’t uBlock Origin in advanced mode do the exact same thing as uMatrix?
Basically uMatrix is so donor to use that anybody can use it. The equivalent uBO section is so complicated that I feel I need to take a master degree in that subject.