Very useful table. But it would be very helpful if the table of test results were furnished with a glossary that:

(a) explains the function and workings of each item under test, and,

(b) also explain how said item is a threat to one's privacy, etc. (how it leaks one's info).

This ought to be important, for many users wouldn't have a clue what some or even many of those functions do and it wouldn't be expected as such that they do (given that the internal working of browsers is a specialized business).

Second, I tried to send feedback to this effect but could not as I'm not a Twitter user (it seemingly being the only of sending feedback to PrivacyTests.org).

It is highly annoying that such groups don't have alternative more neutral methods of feeding back such information, especially so in this instance given PrivacyTests.org's stance on privacy (that being its primary reason for being).

Perhaps someone with a Twitter account who thinks similarly could send them my feedback and or send them this link.

Edit: Re results, I was rather surprised to see how poorly Tor featured in the tracking department, it failing every test. I'd have thought tracking failures would be deemed a significant security risk.

Would someone like to comment on this? (BTW, I've little need of Tor's security, although I've used it on occasions, thus I can't claim I'm very familiar with it.)