On my machine:

Chromium 71: 97%, blocks 2&3 silver, pauses at 24, 64.

Firefox Quantum 64: 97%, blocks 2&3 silver, pauses at 24, 64, 65.

From Wikipedia:

Bucket 2: DOM2 Core and DOM Events

Bucket 3: DOM2 Views, DOM 2 Style, CSS3 selectors and Media Queries

By April 2017, the updated specifications had diverged from the test such that the latest versions of Google Chrome and Mozilla Firefox no longer pass the test as written. Hickson acknowledges that some aspects of the test were controversial and has written that the test "no longer reflects the consensus of the Web standards it purports to test, especially when it comes to issues affecting mobile browsers."