Dropdown
everything on the dropdown looks to be minimized
displays very poorly on my end
is harder to read
'Default' is almost illegible
& extents into the next column
that next column does not show what is is on mouseover
neither does the next column over
untrusted & custom, do
sites names look to be a smaller font too
displaying poorly (on my end)
making difficult to read
Settings
is virtually blank
it looks like there are a set of what might be 4 tabs, left hand side, in the "header" area
below that you have; Globally Allow, Sanitize, Preset customization
a single yellow band with a Default tab, a tab that has no wording, & an Untrusted tab
on the right hand side, below Tempoararily set top-level, there is a box, with no indication as to what it is nor what it does, & whatever it does, it is not doing it correctly
that's it
nothing below that
reset button only shows OK, Cancel
presumably there is to be some textual wording above that, but none shows
OK'ing the Reset did nothing to change the situation


This is wrong. Though sometimes or some pages ? display normally.

---
Update:
Originally, I had the post showing the issue to be in 10.1.6.5rc4, but it was not.
It is with 10.1.6.6rc2.