Also highly recommended for people who are willing to spend a little more time to control where their browser retrieves content is uMatrix[1]. Written and maintained by the most esteemed Raymond Hill who creates uBlock Origin.
If you're on Chrome, don't forget to also install uBO-Extra[2] along with uBlock Origin[2], otherwise you don't get WebSocket coverage.
Actually, Chromium (and uBO) has supported blocking WebSockets via webRequest for a while now[1], despite the desperate protests of a MindGeek employee[2].
If you're on Chrome, don't forget to also install uBO-Extra[2] along with uBlock Origin[2], otherwise you don't get WebSocket coverage.
[1] https://github.com/gorhill/uMatrix [2] https://github.com/gorhill/uBO-Extra