uBlock Origin extension won't install

[seniordevel]

It seems the very important extension uBlock Origin is blocked

1. from listing
2. from installation
3. even from downloading

I did not review your code yet, instead I just ask for the reason now.

https://addons.mozilla.org/en-US/firefox/addon/ublock-origin

[MrAlex94]

FWIW this should be fixed in 1.1+