Earlier quoted context omitted.
The Firefox version has the ability to block third party scripts masked as first party ones through the use of CNAMEs. Chrome doesn't expose APIs to let extensions do it.
Also this: https://news.ycombinator.com/item?id=20050173 > The blocking ability of the webRequest API is still deprecated, and Google Chrome's limited matching algorithm will be the only one possible, and with limits dictated by Google employees. Firefox + uBO + uMatrix will block everything you can reasonably block without making your internet life miserable in the other extreme (although uMatrix can be a pain somet…
If I could force every webdev to browse their site with a fresh uMatrix install I would.