Some people have pointed out that a lot of this doesn't work on iOS. I'd like to add that it also doesn't work for Firefox on Android. Instead you are re-directed to the App Store and get a pretty strange fallback page [1] if you don't use the App Store.
On reading the article,You realise how many of the features are heavily dependent on the chromium project.Considering Safari's penchant for incorporating new features,I do not see this working on iOS anytime soon.