What changed in the appMenu (arrow panel) in the 143 update ?

Hello,

I was using this:

#appMenu-fxa-separator { border-image: unset !important; }

to make the separator between account and the rest of the menu (circled in red) look consistent with the other separators, but after the update it stopped working.

I thought that the ID may have been changed so I checked, but ID is still use so I don't know how to fix it :/

Also what happened to the separator between find page and translate (circled in green)? It's the only one what is longer than the rest, would there be a way to make it look consistent with the rest as well?