I'm sorry, and I respect your work, but I think this is nonsense. Let's say Mozilla moves forward with this project. Assuming that it will be a source of revenue
at all, the "recommendations" are going to be based on whoever has the money to pay Mozilla for ad placement (and let's be honest that it
is ad placement; if it's keyed to the specific interests of each user that just makes it
targeted ad placement). That results in the opposite of the supposed goal of decentralizing power online. To be honest I'm not convinced that adding "genuine end-user value" is not just a paper-thin justification for accepting new sources of revenue that are antithetical to Mozilla's historical values. [1]
But let's assume the most charitable and best case scenario, in which Mozilla continues the program but doesn't accept any money for payed spots or higher placement. How are they going to automatically determine what is valuable? If the algorithms go by what is popular, then it's just a new version of any other content aggregator with all the associated problems. (The listicle and click-bait articles shown in the screenshot on the blog.mozilla link are very telling in that regard.) On the other hand, if the algorithms tailor content closely to a user's particular interests and views, that is the very definition of a filter bubble. [2]
Even putting aside these two worries, I find it deeply counterintuitive to expect automated content to better provide what a user wants to see than they are able to find themselves - e.g. with search engines. This is entirely counter to any previous experience I have had with automatic suggestions. I would very much like to see any justification for optimism here. And even if it were largely successful here, I don't see how it would avoid leaving very small sites, bloggers, and their ideas in the dust. I'm sceptical that a centralized source of recommendations is going to provide a solution to concentrated power on the web.
[1] This is the sort of line we got about recommendations from Pocket. "Bringing valuable content to the attention of users" is the kind of BS marketing-speak I expect from corps which run on ad revenue, but not from Mozilla.
[2] "A filter bubble is a state of intellectual isolation that can result from personalized searches when a website algorithm selectively guesses what information a user would like to see based on information about the user, such as location, past click-behavior and search history." - Wikipedia https://en.wikipedia.org/wiki/Filter_bubble