The original design of my test did not take into account this kind of surrogate, and so was incorrectly concluding that the original tracking script had been loaded into the page. DuckDuckGo browser blocks third-party Chartbeat tracking scripts, but then provides the host page with a surrogate script to prevent breakage of the page's functionality. It was brought to my attention that the 'Tracker content blocking' test for Chartbeat was incorrectly reporting a 'fail' for the DuckDuckGo Android browser. Congratulations to the Firefox team! I am informed that existing profiles will also receive Total Cookie Protection in the next few months. Congratulations to the team at Brave who worked on this! New browser versionsįor the first time, fresh profiles of Firefox are now passing (nearly) all State Partitioning tests, thanks to the worldwide rollout of Total Cookie Protection.

Today, for the first time, Brave is now passing all State Partitioning tests. Last week's response to Vivaldi's claims is here.

In addition, Brave Nightly is now passing screen fingerprinting.

We see on Safari Desktop that the favicon cache is now partitioned! In Safari, Blob URLs is the only remaining API we test that still leaks data across websites. DuckDuckGo Desktop Beta (on MacOS) is now being tested - results are shown in the Nightly section.

Duckduckgo vs brave