The main thing that breaks the web is js blocking, or cookie blocking. For those who are downvoting this poster, I snipped this from the documentation: > Out o

The main thing that breaks the web is js blocking, or cookie blocking. For those who are downvoting this poster, I snipped this from the documentation: > Out of the box, uMatrix works in relax block-all/allow-exceptionally mode, meaning web sites which require 3rd-party scripts are likely to be "broken".