After the latest wpt import the following tests keep switching between TIMEOUT/NOTRUN and whatever their real status is (PASS or FAIL). I've already been backed out once for this and I really don't want to be again, so as a short term measure I'm going to disable the follwoing list of tests:
It may just be that they need a longer timeout. It may be that we need some pref to stop a prompt from interfering with the tests. I hope someone working on webauthn can investigate and reenable these as soon as possible.