Firefox Quantum fails the Acid3 Test (And is slower than 30fps for some tests) (acid3.acidtests.org)

Obviously, you need to be on Firefox Quantum to see its test results. You can click the A to see test failures (Shift-Click it to open in a new tab).

Edit: I get a 97/100, with the following errors:

  Failed 3 of 100 tests.
  Test 23 failed: expected '14' but got '5' - wrong exception for createElementNS('null', ':div')
  Test 25 failed: wrong exception
  Test 26 passed, but took 50ms (less than 30fps)
  Test 35 failed: expected '0' but got '1' - root element, with no parent node, claims to be a :first-child
  Test 69 passed, but took 2 attempts (less than perfect).
  Test 71 passed, but took 214ms (less than 30fps)
  Total elapsed time: 1.57s

Chrome also is failing at 97/100

The only difference I get when comparing Firefox Quantum to Chrome stable on Linux (updated Arch) is Test 71, which takes too much time in Firefox and thereby gets a 'warning'.

"Acid3, in particular, contains some controversial tests and no longer reflects the consensus of the Web standards it purports to test" acidtests.org

Opera used to pass the Acid3 test.

And that version has been discontinued, the team disbanded, etc.

This article is fake news. All the browsers fail it.