the problem with using a plugin for something like this is that as soon as the plugin becomes popular enough, a third party purchases it from the original developer and adds a bunch of telemetry. stylish is a recent high-profile example, but it happens to small, benign-looking extensions even more often.

the problem has gotten so bad that i no longer use the plugin "store". i only install plugins that are open source, and only by building the source myself... meaning i miss out on automatic updates (but at least i know my plugin isn't spyware!).

it sucks.