Sure, but the answer to "How can the average 7zip user know which one it is?" would then be "do a Google search and use uBlock Origin".

How does the user know they are using the official uBlock Origin?

	▲	8organicbits 3 hours ago \| parent [-]
		The Mozilla extension store doesn't have ads, so it's the top item. It has clear download counts and a "recommended" icon. So the advice is to install it from the extension store.