Remove from URL bar

I noticed today that Invert Colors has been pushed to the urlbar again even after I removed it and I can no longer remove it. Not interested in it being in the urlbar, I don't think it has any business *there*. I usually keep my extensions above the urlbar.

TLDR: Unable to remove from urlbar, noticed today (2021/4/11) on firefox-trunk (Nightly, Linux).