The combination somewhat makes sense, and I can imagine this leading to Mozilla acquiring ProtonVPN like they did Pocket, if this experiment turns out to be a success. (Though perhaps that's not really an option if being based in Switzerland is a relevant selling point. Come to think of it - how does Mozilla collecting payments in this case influence that?)<p>That said, I wonder what metrics they are using to evaluate whether this is a success. Obviously, number of people switching to a VPN. However, the screen shots in Mozilla's blog post [1] look pretty intrusive and distracting from the browsing experience. I wonder if they will be able to capture user annoyance, if applicable.<p>[1] <a href="https://blog.mozilla.org/futurereleases/2018/10/22/testing-new-ways-to-keep-you-safe-online/" rel="nofollow">https://blog.mozilla.org/futurereleases/2018/10/22/testing-n...</a>