uMatrix
Point and click matrix to filter net requests according to source
Definitely for advanced users. uMatrix does not guarantee that sites will work fine: it is for advanced users who can figure how to un-break sites, because essentially uMatrix is a firewall which works in relaxed block-all/allow-exceptionally mode out of the box: it is not unexpected that sites will break. uMatrix can be set to work in allow-all/block-exceptionally mode with a single click on all cells in the global scope if you prefer to work this way. This will of course break fewer sites,...