says nothing and all. those tests only show the result, but not its meaning. brave/vivaldi uses an integrated adblocker. librewolf/mullvad uses questionable switches which are not set by default in firefox, but available. librewolf includes noscript and ublock by default. tor is special and has its very small purpose. safari uses another browser engine and is only available for apple. ungoogled is a major number behind in that test and thus it is vulnerable, and its a private build.
All thes test are made with default browsers settings, most of users don't use the default settings ; for example in vivaldi you can switch off integrated adblocker ( switched off by default during first launch on my Debian distribution) and more......, put adguard or ublock and you will get differents results, so not reliable for me. You'd better make your own tests : https://d3ward.github.io/toolz/adblock.html https://coveryourtracks.eff.org https://browserleaks.com
all those tests only will work if i am willing to make them work. default settings are nice any may work as expected, personal settings may sharpen security without to break pages. in special uBo lite in firefox breaks d3ward, not working. need no filtering which makes the test futile. as you wrote, different blockers with different settings may result in different scores. for me currently uBo with my settings is doing a brilliant job beyond adguard mv3+umatrix (edge browser).
You are incorrect. LibreWolf DOES NOT include NoScript by default. Only uBlock Origin is pre-installed.
