Omnia Turris

There already is µblock that’s only MV3 based https://addons.mozilla.org/en-US/firefox/addon/ublock-origin-lite/ give it a try if you see any difference

Your problem is that there is JS code running in a browser?

I’m with OVH and Kimsufi and I don’t know what you’re even talking about. Do other providers make you install something locally?

Not banking but transfer proxy space.