The interesting thing here is that a commercial marketplace for browser extensions failed. That seems surprising - surely a marketplace for extensions to the most popular browser on the planet could bring in some revenue?! Is it just that nobody paid for things? Presumably they're going to keep running the chrome web store, so isn't a cut of paymens "free money" to them? Is there some big cost to this I'm not seeing,…
My personal sense (not knowing anything internal about the product) is that uptake is extremely low. It also isn't free to run a product that accepts payment. You have to hook it in to a payment processor, handle fraud, handle a different expectation of support, have a bunch of custom code to handle the paid vs. unpaid case. At Google's scale, there's liability to consider, and various compliance and moderation issue…
In a hypothetical world where Google and Alphabet are broken up into a bunch of small companies, would the Extension Store Company be making enough revenue to be viable?