[Tails-testers] I'VE BEEN SLIMED!

In Tails 3.6, the add-on, "Ublock Origin" won't start in the browser. There's no sign of it either, not in extensions list or anything. When I searched through files in a terminal window I noticed remnants of UBo but that's it.

Should I load the .xpi manually into the browser to install it? If not, how may I resolve this issue?