The easiest way to achieve this on a desktop browser (or Firefox for Android) may be to add custom, named filter lists to uBlock Origin. The name will show up o

The easiest way to achieve this on a desktop browser (or Firefox for Android) may be to add custom, named filter lists to uBlock Origin. The name will show up on the block page ("Found in: $LIST_NAME") It's not network-wide, but at least you can host your lists on the web to keep them up to date across your devices (and to share your efforts with others!).